Monday, June 27
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U.S. stock market on May 23, 2017: thoughts and outlook

*These are our short term thoughts on the market. We combine our medium-long term model and discretionary outlook when making investment decisions. We’re looking at how the market reacts to news, earnings, and other fundamental themes related to the key individual sectors.

Stock index & news

Some people were shocked by today’s weak New Home Sales.  It’s interesting that all 4 housing indicators this month were weaker than expected (New Home Sales, Housing Starts, Pending Sales, Existing Home Sales). This temporary weakness matches the fact that Citigroup’s Economic Surprise Index has been deteriorating. However, overall housing is still improving. Focus on the overall trend and not the month-to-month fluctuations. Housing is still a medium-long term bullish factor for the U.S. stock market. Here’s the New Home Sales chart.   There is a new bearish factor We have been looking for bearish factors that will trigger a small 6%+ correction in the S&P 500. Aside from the fact that this is one of the longest small rallies in history, we only had 1 bearish factor thus far:
  1. Rising oil production will hurt oil prices. Falling oil prices will put downwards pressure on the energy sector, which will hurt stocks.
But perhaps we now have a 2nd bearish factor: Trump-Russia investigation. The worst case scenario is that all the Trump-Russia allegations turn out to be true. That will probably cause a significant correction in which the S&P 500 will give up all of its post-election gains. In this case, our model will have failed to predict the significant correction, which will be its 3rd failure in 67 years. (Right now our model does not foresee a significant correction). The S&P futures crashed to 2028 on Trump’s election night. If Trump is impeached and forced to resign, 2028 is a likely target. Here’s the chart S&P 500’s futures chart.   A bear market will not ensue if Trump resigns. The U.S. economy continues and WILL CONTINUE to grow with or without Trump. Mike Pence will just be a lame duck president like Obama in his 2nd term. The economy will improve on its own. However, we don’t think this worst case scenario will happen. The FBI has been investigating the Trump-Russia allegations for many, many months. If there really was anything that incriminated Trump in clear black-or-white terms, they would have nailed Trump already. Instead, it’s likely that the Trump was involved in some gray areas with Russia. Here’s the logic:
If Trump is crystal clean, why does he need to beef up his legal defence and prepare for possible impeachment?
News update: Trump is close to picking outside legal counsel for the ongoing Trump-Russia investigation. In addition, former CIA director John Brennan said that he was concerned about “possible interactions” between members of the Trump campaign and Russia’s intelligence agencies. Brennan doesn’t have any solid proof, but he is concerned. We think that Trump has something to hide. However, we don’t think that “something” is enough to prove collusion, impeach Trump, and force him to resign. Perhaps that “something” has to do with Trump’s business dealings with Russia. Trump is the first president not to release his tax returns. *This is all random speculation. The continuing cloud that hangs over this administration can be the trigger for a small 6%+ correction. We don’t think this cloud will cause a significant correction. The S&P’s reaction to Trump-news right now is completely normal. The S&P always lags the bad news and fundamentals. The news/fundamentals will deteriorate first while the S&P ignore the news and continues to rise. Then the S&P will fall when the bad news cannot be ignore. That has been the pattern historically.

Sectors

There was nothing notable going on in the individual sectors today. Energy Oil went up a little today, so the energy sector ETF XLE went up a little. Finance The finance sector was the leader today because interest rates went up. The year-over-year change in interest rates impacts banks’ profit margins. However, you can see that interest rates are still at the low end of their range. Here’s the 10 year Treasury yield chart. Information technology The tech sector performed in line with the S&P 500 today.

Bottom line

Who knows when the small correction will begin. We now have 1 additional short-medium term bearish factor.
  1. This is still one of the longest stock market rallies without a small correction in history.
  2. Our model does not foresee a significant correction or a bear market. Based on our discretionary outlook, we agree with our model.
  3. Oil is still a risk to the S&P 500.
  4. Trump is a new short-medium term risk to the U.S. stock market. This risk is enough to cause a small correction but is not big enough to cause a significant correction. But if Trump is impeached and forced to resign, you should expect a significant correction.
Best betta tanks: Marina LED Aquarium Kit VS. EcoQube Aquarium
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Best betta tanks: Marina LED Aquarium Kit VS. EcoQube Aquarium

he radiant beauty, vivid colors, low-maintenance, and general awesomeness of Betta fish make them perfect to keep as pets in the aquarium. However, there are a few things you will need to keep your eye out for when decides to keep Betta fish. One of these things is the best betta tank. Generally, the right tank with the proper conditions will create a healthy environment for the growth of Betta. In order to help you figure out what is the best tank for your fish, this post below will go into details of two Betta fish tanks: Marina LED Aquarium Kit VS. EcoQube Aquarium.

#1 Tank size

Many people believe that Betta fish do not need much room to live in. They prefer to keep them in tiny bowls or tanks. However, the truth is that Betta fish should not be kept in less than 5 gallons tank size. And that's why you should learn about the best aquarium starter kits. Marina LED aquarium kit is available in 10 and 20 gallons sizes. It is always better if you can give your Betta a large tank like this. Especially if you want to keep them with the other fish since one of the special characteristics of Betta fish is a territorial dispute. However, if you have limited space and you are looking for the small and convenient sized tank so that you can place it on a table or your office desk, you can choose the EcoQube tank instead. EcoQube is about 2 gallons in size; this size is relatively small for a betta, but you also can put him in this tank if you give him frequent cleaning and filtration.

#2 Filtration

It is obvious that the filter is the key to maintaining your aquarium. Ideally, the tank should come with a filter built-in. Marina tank offers a Marina Slim S15 clip-on filter with quick-change filter cartridges. The filter comes with a sponge, which will protect your Betta fish from getting sucked in. EcoQube Betta tank includes an aquaponics filter. It does a great job at remove all the fish waste, create a clean self-sustained ecosystem.

#3 What is in the kit?

If you are a beginner, you may expect to get an all-in-one aquarium kit, so that you will get all the equipment you need to set up your Betta tank. Marina kits come with Led lighting system, fish food, Aqua Plus Water Conditioner, Cycle Biological Supplement, fishnet, thermometer. EcoQube also offers everything you need to get started, includes aquaponics filter, sand decoration, mountain stone, glass cover, wireless remote LED light and basil seeds. If you do not need to upgrade the tank, you will get a comfortable living environment for your betta with this tank.
What retained eye caps implies on snakes
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What retained eye caps implies on snakes

Snakes don’t actually have eyelids. Rather, they have a special kind of adjusted scales over their eyes called spectacles (or eye caps) that protects the eyes. Amid a typical shedding cycle, the eye caps are expected to fall off. In certain cases, one or both eye caps are retained. This regularly occurs in snakes with swelling eyes (perhaps the eye tops get hung up) or in states of low humidity. While there’s some theory on the correct treatment of held eye caps (or that they should even be treated), the condition can cause infection, duct and eyesight problems if it continues during the lifespan of the snake.

Side effects of Retained Eye Caps in Snakes

It’s in every case best to look at the skin your snake sheds. (Also, it’s really cool to see, too.) The eye tops ought to be intact when you look at it, which means there ought to be no openings where the eyes spots are. In the event that the skin seems to have gaps where the eye tops used to be, then it could either be they were retained on the snake or they fell separately from the skin. To ensure they’re not retained on the snake’s eyes, check its eyes to check whether they are cloudy or clear. Clear eyes typically mean the eye tops shed properly, while a shady or fogginess in one or the two eyes can show eye tops that didn’t shed. Be that as it may, not all anomalous looking eyes represents this condition. When in doubt, counsel an exotics veterinarian who is knowledgeable about reptiles.

Treatment

A few reptile owners have mixed thoughts as regards retained eye caps. Some recommend you should disregard them and let them fall off on its own. It’s best to counsel your reptile veterinarian before deciding what you believe is right for your snake. In most cases, your vet will recommend you come to see him so he can take off the caps to prevent a blurry vision which could lead to a reluctance to feed, aggression and nervousness. Retained eye caps can also create room for infections to move in, particularly in the event that they were held through more than one shed. If your snake has this condition, first, absorb it warm water (not very hot) a few times each day. Ensure the water is deep enough for the snake to be completely submerged then keep your eyes on it to prevent drowning. Doing this for a few days might aid the skin to become soft and allow the snake shed it but if this fails to happen, then you should take it to the vet for removal.

Preventing Retained Eye Caps in Snakes

Maintain proper humidity in the snake’s cage to prevent this condition. A lot of snakes thrive in an area with 50 to 70 percent moisture humidity. Moistening your tropical snake consistently additionally helps it to hold the dampness required for adequate shedding. Ensure your snake’s cage is smooth and does not contain sharp or pointed objects that could cause an injury to the snake’s eye area. Feed your snake properly and finish it with adequate water for hydration. Moreover, you can aid the process by providing a shedding box for the snake. This can be in the form of a damp paper towel placed in a well-ventilated box. The microclimate within creates the required environment for shedding.
Choosing an ideal snake pet
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Choosing an ideal snake pet

Snakes are awesome creatures and with proper handling, they become awesome pets. Be that as it may, snakes are clearly not meant for everybody. They have exceptional necessities and should only by those prepared to give them the special care they require. In the event that you are new to pet snakes, discover what you ought to consider before settling on one and what snake categories are the best snakes for novices.

Interesting points to note Before Choosing a Snake as a Pet

Snake pets are long time commitments because some of them could live to be 20 years. You should be prepared to feed your snake live prey, although pre-killed and frozen prey are ideal choices. Also be ready to devote a section of your freezer to storing frozen food for your snake. Snakes are renowned for escaping whenever they have the chance so secure their cages properly. Snakes are persistent when it comes to finding small gaps and squeezing through them. As beautiful as they may seem, venomous and large snakes should not be kept as pets because of their safety concerns. Obtain a captivity red snake from a respectable breeder if you can. Snakes gotten from the wild are more difficult to tame, prone to diseases and parasites and are more stressed.

General Pet Snake Information for Beginners

Feeding Snakes: Pre-Killed versus Live Prey – Ideally, feeding your snake pre-killed prey is advised since a live prey could injure the snake in self-defense, it is less stressful to keep a supply of dead prey in your freezer for your snake’s feeding. How to Provide a Thermal Gradient – All snakes should have the capacity to manage their body temperature by moving hot and cool areas. Provide a gradient and ensure the warm area of the tank is sufficiently warm to suit your snake’s health and also help them digest their meals. Signs a Snake is About to Shed – There are some genuinely basic signs that a snake will soon shed its skin and to an amateur, it may not be easily to notice. Learn to know what to look out for so you’re not caught off guard

How Can I Tell if My Snake is a Male or Female?

Do you research properly so you can easily identify a male snake and a female snake. How to Find an Escaped Pet – If your snake happens to be an expert in escaping, there are several ways that you can track them down. Bear in mind that they will likely head to an enclosed and warm area. Constricting Snakes – Pythons, boas and other large snakes are pretty strong so be sure you have enough information on handling them. Irrespective of the breed you end up with, a new snake owner ought to be acquainted with their behavioral characteristics, feeding, proper care and the commitment required to keep the snake.
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Milk and king snakes

Milk and king snakes are excellent, docile snakes. Milk and king snakes are firmly related, both belonging to the Lamproletis family, and there are a few subspecies of both milk and king snakes. Patterns and colors differ between the subspecies, but there are many striking and delightful patterns to be found among these snakes.

Choosing a Snake

Things to search for in a strong and healthy snake (any sort of snake):
  • Round, firm body.
  • Clear eyes (might be somewhat shady if going to shed), no discharge from eyes.
  • No indications of bugs (check particularly around head/eyes, search for dusty spots on the body, and check hands after holding the snake).
  • No open mouth breathing or wheezing for breath.
  • Inside of mouth consistently pink (cheesy looking matter or reddened area may indicate mouth rot).
  • Shiny, smooth skin without any scabs or wounds.
  • Clean vent with no swelling.
  • Should move easily without any tremors.

Housing

A safe cage is essentially vital – king snakes are famous for testing their cages for weak spots and getting away from the littlest of spaces. Any cage requires a latched and secure top. Bear in mind that setting up a cage like this might be expensive but it will be justified, despite all the trouble. Remember that snakes can get past spaces that are so little and doesn’t possible to pass through. Putting plastic tubing (like aquarium carrier tubing) between the edge of the tank and the top may likewise help avert escapes. Milk and king snakes ought not to be kept in one cage because they won’t hesitate to eat each other when they get the chance. Won’t eliminate the bad situation, though. You’ll want to use a  Best Snake Bite Kit for that.

Substrate

For a substrate in the tank, an assortment of materials can be utilized. For new snakes, paper towels or butcher paper are perfect to encourage cleaning and permit observing of defecation until the specific the snake is free of parasites. Different substrates that can be used are aspen shavings, mulch, reptile bark, or outdoor-indoor carpeting (never use pine, redwood or cedar). If you settle for shavings, it is critical to ensure it isn’t ingested with the snake’s food because it could lead to serious health issues. Whatever is utilized, neatness is critical.  Ensure you pick something that you will have the capacity to clean as regularly as you can.

Feeding

Milk and king snakes are fed mice or infant rodents. When in doubt, feed the snake only what is equivalent to the width of the snake at its most stretched out part (the head not included). Young snakes (subadult) ought to be fed twice weekly. Fully grown snakes can be fed adult mice (or weanling rodents) on more than one occasion per week. Similarly, as with several snakes, pre-killed prey recommended to ensure the prey does not harm the snake.

Handling

After allowing the snake a few days to settle in, you can begin handling it. Be delicate and diligent, with day by day short sessions at first to build up the required trust. Regurgitation is moderately basic in these snakes and can come about if you handle them too soon after a meal. Other reasons could be as a result of illness, too cold enclosure or that the meal is too large. If it does keep reoccurring after you have taken the necessary adjustments and it keeps recurring, check with a vet.
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Selecting an ideal pig breed for your farm

Are you considering raising pigs on your farm and you want to find out if it would be a great idea? Are you also thinking about what breed to get? What breeds you can lay your hands on? What are the advantages and disadvantages of various pig breeds?

Commercial Pigs

“Processing plant” raised pigs, brought up in huge amounts on the super hog house, are intended for ideal meat production but are tasteless, bland and dry. They may not work out great on a residence or little homestead setting because you may need to provide adequate space for your pigs to roam. On the other hand, the industrial facility breeds may do not have a portion of the more conventional pig instincts and behaviors.

Heritage Pig Breeds

A heritage breed is a breed that was produced before the commercial aspect of raising pigs became prominent. These are old-time era pigs that were brought up in barns and backyards back in America and Europe, pigs that were chosen for their simplicity of raising, their preferences, and their solidness. Heritage breed hogs can forage and brush effortlessly, picking up the entirety of their nutrition from it. Here are a few heritage breed pigs with a brief description of their identities and different qualities. Just as goats, there are several types of pig breeds, so this rundown is in no way comprehensive.

American Yorkshire Pigs

American Yorkshire pigs originated from England but later went on to become popular in the United States. They are especially useful for hams and bacons and are also great for their mothering ability and meat production.

Berkshire Pigs

Berkshires are known for their extremely delicious, darker meat. They are a famous specialty breed for small time farmers. They are one of the most seasoned breeds known. Berkshires are strong, dynamic foragers, and stretch around 600 pounds when fully mature. Personality-wise, they are friendly, curious and have a decent attitude.

Gloucestershire Old Spots Pigs

Gloucestershire Old Spots, likewise called GOS, are from England and were in the old days used for cleaning up orchards. There are not very many of them in the United States and you may need to be placed on a waitlist for you to get one. GOS’s are lighter cleaned and may require loads of shade in hotter, sunnier atmospheres. GOS’s can put up required market weight in just six months.

Hampshire Pigs

This is one of the most seasoned American breeds still in around. Hampshires have a white belt around the front of their body, including their front legs. These are phenomenal foraging pigs, extremely tough and deliver superb quality meat. Hampshires should be a decent pig for amateurs.

Hereford Pigs

Herefords are a lean meat hog. They’re considered “lovely,” and regularly utilized for showcasing at 4-H and FFA fairs. They are versatile so raising them on semi-confined spaces and on pasture is not a problem. Herefords are astounding at tiling and rooting. These pigs can easily be accessed, with a substantial rearing populace in the United States.

Large Black Pigs

Large Blacks are tough, thrifty, and simple to oversee. They are otherwise called the Cornwall, Devon, or Lop-eared Black and were first spotted in England. They have a long and profound body, as they were initially reared as a bacon-type pig. Large Blacks can fare very well on pasture and were initially raised in unpleasant conditions so became truly versatile. Their dull pigmented skin implies they are impervious to sunburn.

Tamworth Pigs

Tamworth pigs were first spotted in England and are smaller in size when compared to different breeds. They’re particularly great at delivering loads of tasty bacon.
Best reef LED lighting: MarsAqua Dimmable LED Coral Reef Light vs Aquatic Life Reef Edge LED
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Best reef LED lighting: MarsAqua Dimmable LED Coral Reef Light vs Aquatic Life Reef Edge LED

If you are planning to purchase on the lighting system for your reef tank, then nothing better than the best LED aquarium lighting. The LED light will not only create an attractive appearance for your fish tank but it is also necessary for the development of the corals and plants inside the tank. One more main attraction of LED light is the power savings features. However, as the market is filled with many different types and brands of LED reef lights, it is not easy to choose the best one that perfectly suits your tank. This post is the things you need to know about reef LED light and we have come up top 2 <best reef LED lighting: MarsAqua Dimmable LED Coral Reef Light vs Aquatic Life Reef Edge LED.

#1 Tank size

Before purchase on the LED light system for your coral reef tank, ensure that this is can be able to install into your tank.  Mars Aqua light featured with a double universal cascade. It will provide enough light for up to 55 gallons tank (one light is ideal for 30 inches x 24 inches coverage). But if you have a bigger tank, you can series multiple sets of LED lights together at the same time without requiring more sockets. Aquatic Life reef edge comes in two sizes 36 inches and 48 inches, which are fit the most common tank size. It includes the adjustable width aquarium frame mounts with extendable arms safely to install the fixture above any tank size. For example, 48 inches model can be adjusted to fit with aquarium frames between 47 inches and 50,25 inches wide.

#2 Full spectrum

What is the best light spectrum for corals? Blue and violet seem to provide the best light spectrum for corals. The Mars Aqua LED light is full spectrums needs with two combinations of lighting beam settings that are designed to improve the growth of the aquatic plant and healthy coral. These two lighting beams come with two different switches for separately adjusting. Channel one includes Violet (420nm), Royal Blue (450nm), Blue (470nm). And channel two includes Green (520nm), Red (660nm), Neutral White (6500K), Cool White (12000K). The Aquatic Life reef edge LED Fixtures to incorporate six colors of LED’s to ensure a full spectrum of light for your aquariums. It includes (27) 9K White, (69) Blue 454nm, (9) Blue 440nm, (3) Violet 420nm, (3) Violet 400 nm, (6) Red LED's, which is offering 3 channels of lighting.

#3 Mode and Features

Mars Aqua provides two modes are day & night lighting effects, which mimic natural light to help corals get the best balance thanks to two channels of lighting beam. Two channels of brightness also can be adjusted from 0% to 100% separately. It also uses advanced high-speed quite fans of blowing air, which keeps the cooling performance and heat dissipation all the time. Aquatic life offers three channel timers, which is programmed to slowly turn on or off in order to create the lighting effects of Sunrise and Sunset and the shimming blue glow of Moonlights.
Frequently Asked Questions About Food For Bearded Dragon
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Frequently Asked Questions About Food For Bearded Dragon

One of the most important things you have to provide for your bearded dragons is a nutritious, varied diet. Even though it is not a difficult task, but there are also some things that you should know about food for bearded dragon. Some food insects and vegetables tend to be better choices and supported to feed your bearded dragon, while some should be avoided. These bellows are some questions you may wonder when it comes to feeding bearded dragons.

What type of insects to feed bearded dragons?

Bearded dragons are known as omnivorous, they can eat both meat and plant. Some types of insects that most common for bearded dragon are: cricket, dubia roaches, dorn worms. Types of insects you can feed your dragon as treat and offered intermittently are Mealworms, wax worms, butter worms, silkworms, etc. Types of insects that should avoid feeding bearded dragons are Fireflies, boxelder bugs, wild-caught insects. Note: The best bedding for bearded dragons should only be a resting place for them and never a food dish for you to place food on.

What vegetables can bearded dragons eat?

Greens and vegetables should give your dragons every day and as much as they can eat: Collard greens, mustard greens, bell pepper, cabbage, kale, arugula, asparagus, basil, watercress, sweet potato, etc. Some vegetables that should be fed rarely: Beet greens, lettuce, spinach, tomatoes. Never fed them these plants: avocados, rhubarb.

What are diet requirements of baby bearded dragons?

Baby bearded dragons require a diet rich in protein and a plentiful source of live food as well. They should be fed as much as they can about 4-5 times per day and last for 10-15 minutes per meal. A baby should be consumed up to 70-80 crickets per day. Feeding them vegetables (can mix with fruit) before you feed them insects. Because most of bearded dragons will prefer to eat insects and ignore the vegetables.

What are diet requirements of adult bearded dragons?

When bearded dragons are 18 months old, they can seem like adults. Unlike the baby, adult bearded dragons do not need much of insects since they stop to grow. Instead, adult bearded dragons diet should be 80% vegetables and just 20% of insects. The frequency of feeding also decreases. An adult may need to eat once or twice a day. Fruit and vegetables should be making up the largest part of their diet.
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Why you should and should not use aquarium pump submersible?

The water pump produces the levels of oxygen movement through the water. Due to this your fish and plants will do much better. There are a variety of aquarium pump types but submersible pumps can be used as it possesses a powerful motor to pump water in even large tank. I have been used my submersible pump for many years and it have always been good to me. However, there are also some drawback that make me weigh the other options of aquarium pump. Let’s take a look at the pros and cons of submersible water pumps and so you can decide if it the best aquarium pump submersible will appropriate for your aquarium setup or not.

#1 The advantages of submersible water pumps

The most common water pump type is the submersible pump. It brings significant efficiency and convenient as it never needs to be primer. As the name suggested, the entire pump can be submerged into the tank water and you do not need to worry about it wearing or tearing. The water pressure gets the water directly to the pump so it will save a lot of energy than the other kinds of pumps. One more advantage of submersible pumps is that since it is under water, it I much more quiet than others pump. This is because the water they are submerged within ends up absorbing the noise of the pump. For beginner, I would like to recommend this kind of pump as it is a heck of a lot easier to install. Submersible pumps do not require you to do any complicate things or drilling into the bulkhead of your filtration system. Since the pump is always submerged in water, it also keeps the motor cool easier than other pumps.

#2 Disadvantages of submersible water pumps

a disadvantage of these internal pumps is that as they are water cooled, so they will release some heat out into the water and may heat up the water. These shouldn’t be used in cold water aquariums. The other drawback is that the seals can become corroded over time. This can make water seeps into the motor, rendering and need to be repaired. Besides, that seal makes the submersible pump a bit difficult to get repairs. Not only that, a submersible water pump can have a large body and take a lot of internal space of your aquarium, be careful of the dimensions of the pump.
Pros And Cons Of Fish Tank Thermometer
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Pros And Cons Of Fish Tank Thermometer

Your fish will have a risk of fall ill and could die if the temperature in the tank sudden changer and out of their safe level. Each type of fish requires different temperatures. Even though you have a heater to keep the water warm. But how do you know if it is at the temperature you want. That way you will need the fish tank thermometer in order to maintain ting the internal environment of your aquarium. Thermometers come in many types, so it can be difficult to know what will be the best for your tank.

#1 Stick on thermometers

Stick on thermometers are usually use in the freshwater tanks, because this type of thermometer may come with the fish tank kit for the beginner. Stick on the thermometer is accurate enough to use if you are do not have much of a requirement. It is easy to use, versatile because you can use it not only for a fish tank. Especially it is not expensive. Because this thermometer is stock outside the tank, so there is maybe the effect of the temperature surrounding this type of thermometer. Besides, if you are using a glass tank, the thickness of glass also can affect the accuracy of this thermometer. Therefore, when using a stick-on thermometer, notice that you do not place it under the lamp of direct sunlight. Also do not stick it near a heater, chiller, vent. Moreover, this thermometer will read better when observer straight on, so placing it where you easy to read most. This is the best aquarium thermometers for those who have a limited budget.

#2 Floating or standing thermometer

This type of thermometer is placed inside the tank, measuring directly the water temperature.  This is cheap and accurate. But the outstanding drawback of it is that this thermometer made of glass so it more fragile than other thermometers. It might not the good option to choose for fish tank thermometer. Once it breaks, it can cause some dangerous for your fish.

#3 Digital Thermometers

There are two parts of digital thermometer are probe (placed inside the aquarium water) connects with the digital display outside the tank. it can be wireless or wire. There are some extra function can come with digital thermometer such as timer or audible alert feature, which will warn you when the temperature go down or raise up out of the desired range. The cons of this thermometer is that it quite expensive and require batteries to run.