5 Best Glass Aquarium Heaters of 2021

Guide to Glass Aquarium Heaters.

A fish tank is a beautiful thing, it’s what brings many people joy and relaxation. That’s why it can be stressful when your aquarium starts to get colder than normal and you don’t know why. It could be that your heater has broken down or the temperature in your home has dropped too low for you to enjoy the full benefits of having an aquarium. Luckily, there are some easy ways you can keep your tank warm at all times with just one purchase from any local pet store!

The temperature of your aquarium is an important factor in the comfort and well-being of your fish. Unlike humans and other mammals, fish do not produce their own body heat.

The temperature of their water environment directly affects the metabolic rate, and therefore fitness level, of a fish. They must rely on the temperature of the water to maintain their body temperature. This makes it very important that you keep your aquarium at the proper temperature for your pets. This aquarium heater guide covers everything you need to know about heaters.

Aquarium heaters come in a variety of shapes and sizes. There are different types of freshwater, saltwater, or both. They also have various wattages to accommodate the size of your tank.

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How to choose an aquarium heater

Choose an aquarium heater that is suitable for your needs: either by watts per gallon (the higher the number, the more powerful), gallons it can cover (most tanks will use 25-50 watts), diameter, length, type (chances are you’ll find one perfect match). You should also be aware of your fish require freshwater or saltwater – some people keep them together in their own temperature range which usually means using two heaters!

The most common aquarium heater is sealed within a glass tube that hangs upright, bolted with plastic screws to the side of your tank. If you look at a heater, you’ll notice it comes with a specially built protective cage to prevent the heating element from touching even the glass side of your tank.

It may also have an adjustable knob on its front which allows you to set how much heat is being emitted from inside and can be used as desired without any risk of burning or breaking anything (even if there are children around). The coils themselves use electricity to create warmth in water by transferring heat through conductor wires made out of steel, aluminium or other metals such as nickel-plated copper.

Position your heater near a filter inlet/outlet or a circulation pump to ensure even heat distribution. Submersible aquarium heaters can be installed horizontally near the bottom of the tank for best results. They can also be positioned vertically if that is your preference.

Since aquarium heaters are electrical appliances that produce heat, they are in no way different from this case. A lot of aquarium heaters are naked metal rods that heat up whenever a certain amount of electricity is passed through them. Titanium heaters are far much better than aluminum heaters. Some aquarium heaters may not be able to heat a large volume of water.

Best Glass Aquarium Heaters – FAQ

Are aquarium heaters dangerous?

Fish tank heaters are perfectly safe if you take proper precautions and measures before installation. As an aquarist, you ought to remember that aquariums are not always built to withstand excessive heat.9 Nov 2020

Can a fish tank heater catch on fire?

Yes, a fish tank heater can catch on fire for a few different reasons. Often, fish tank heaters that catch fire are cheap, making them more likely to burn out or get salt in them.18 Jan 2021

Where should a fish tank heater be placed?

Consider the right placement for your heater inside the aquarium. Position your heater near a filter inlet/outlet or a circulation pump to ensure even heat distribution. Submersible aquarium heaters can be installed horizontally near the bottom of the tank for best results.

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What happens if my fish touches the heater?

Fish feel pain. If they realize the heater is burning them, they will swim away. Unless the fish can’t, maybe it’s stuck or hiding from a bully. The first and easiest way to do this is to maintain a good current and flow over the heater to ensure the heat produced is quickly distributed across your fish tank.

What wattage heater do I need for my aquarium?

For the heater wattage, the basic rule of thumb is to use between 2.5 and 5 watts per gallon of actual water volume in the aquarium. However, often more wattage is required, depending on how much you want to raise the temperature.29 Aug 2019

Can I put my aquarium heater under the gravel?

The answer about whether it’s a good idea to let your heater touch the gravel substrate is “no.” This is the rule for any glass-encased heater, though there are related issues and not every heater is the same. Even if the heater is placed gently against the gravel substrate, it is still in danger.

When should I turn off my aquarium heater?

If it is an aquarium heater, you should be able to set it to your desired temperature and leave it plugged in. The only time you would need to turn it off is if you are taking it out of the tank or doing a large water change and the heater is no longer submerged properly.

Do fish tank heaters turn off automatically?

Do fish tank heaters turn off automatically? When the water reaches the preset temperature, the heater will automatically turn off itself. Therefore, you don’t need to worry about getting high temperature aquarium heater that’s not suitable for your fish.

Do fish tank heaters raise electric bill?

Fish tanks in warmer environments generally require less energy to heat than ones in colder environments – that’s why in winter your power bill might increase. If you need to heat your fish tank to say 10°C above room temperature overnight, a 4′ tank might require two heaters, with a 100 watt capacity each.8 Mar 2017

How do I choose an aquarium heater?

Sizing a tank heater (or heaters) is based on the water volume of the tank, the average temperature in the room where the tank is located, and the desired water temperature for the tank. For the heater wattage, the basic rule of thumb is to use between 2.5 and 5 watts per gallon of actual water volume in the aquarium.29 Aug 2019

Can you use bleach to clean a fish tank?

The answer is yes; when used in proper concentrations, bleach is safe for aquarium use. If you follow the rules, bleach is safe to clean your aquarium, equipment and even plants. It will safely and effectively disinfect glass, equipment, and accessories in your fish tank.10 Nov 2019

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Do fish tank heaters turn on and off?

All aquarium heaters will turn itself off once they have reached the temperature of the setting. No need to worry if the water will overheat. If the water gets colder than the set temperature, the heater will automatically turn itself on.

What is the best aquarium heater brand?

– Best Overall: Aqueon Adjustable Pro Aquarium Heater at Amazon.
– Best for Turtles: Tetra Fauna Aquatic Reptile Heater at Amazon.
– Best Electronic: Fluval E Electronic Heater at Chewy.
– Best Titanium: Finnex Hang-On Electronic Controller Aquarium Heater at Amazon.
– Best In-Line Heater:

Can I use a 50 watt heater in a 2.5 gallon tank?

That said, most modern heaters are pretty reliable (as long as you stick with the well-established brands) and a 50W shouldn’t generate too much heat too quickly for a 2.5-gallon.14 Apr 2007

Is vinegar harmful to fish?

Always remove your fish when using vinegar to clean your tank. Vinegar changes the pH of the water, causing change that can stress your fish, interfere with their body’s protective slime layer, or even kill them, according to Aquariawise.24 May 2020

Are all aquarium heaters submersible?

Are All Aquarium Heaters Waterproof? The majority of heaters are fully submersible. This means they sit under the water of your aquarium. These will have a minimum water line that is not reached will cause damage to your heater.7 Dec 2019

How many gallons can a 50 watt heater heat?

Aquarium Heater Size Guide
————————–
10 Gallon/40 Liter
20 Gallon/75 Liter
25 Gallon/100 Liter
40 Gallon/150 Liter

How many watts does my aquarium need?

A good basic rule to follow is to provide 1 to 2 watts of lighting per gallon for fish-only aquariums, 2 to 5 watts per gallon for freshwater planted aquariums, and 4 to 8 watts per gallon for reef aquariums.

Can aquarium heater touch gravel?

The answer about whether it’s a good idea to let your heater touch the gravel substrate is “no.” This is the rule for any glass-encased heater, though there are related issues and not every heater is the same. Even if the heater is placed gently against the gravel substrate, it is still in danger.

Can you bury an aquarium heater?

Burying a heater in substrate/sand/whatever is essentially insulating it, so it won’t heat the tank as well, and since the heater is effectively heating a smaller volume of water, it will cycle on/off more rapidly, and this might cause it to fail sooner.23 Jan 2014