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There are many different types of fish tank heaters around for you to choose from if you have an aquarium at home. It is an important piece of equipment that is used to keep the temperature in the fish tank form dipping below the levels that would be dangerous for the marine life and other aquatic lives that lives in the tanks. If you are looking for one, it would be good if you could look at a few variations and see if the one you choose would meet the requirements you have for your own fish tank.
There are internal heaters and external heaters. Internal heaters refer to the system where the heating element is placed inside the fish tank itself. An external heater would refer to a system which the heating elements are placed external or the outside of your fish tanks. The external heaters consists of two varieties-the in line heaters and the filter heater, Internal heating elements exists in three different varieties-the hanging submersible and the substrate. All of these units have their own thermostats which allows it to switch off and on automatically to be able to control the temperature,
Hanging Heaters
This is the most popular and the least expensive of all fish tank heaters. This is great for newbie who have yet to learn the art of keeping the temperature in the right condition for optimal marine life habitat. These types of heaters hang behind the fish tank and ahs a glass tube that connects to the heater element that so placed in the water. Do not use this model for saltwater fish, the salt can get into the tube and cause corrosion or worse, electric shock
Submersible Heaters
These types of heaters can be fully submerged into the water without causing damage. It makes these types of heaters more efficient than hanging heaters. The heaters need to be placed in a position where there is enough space between the heater and the sides of the tanks. You certainly do not want any fish to get caught and fired.
Substrate Heaters
The substrate heaters are less commonly used by nevertheless these are just as effective to provide warmth to the tanks in a special way. The heaters make use of a set or rolls or wires which are then placed on the gravel at the bottom of the fish tank. The heat is then radiated from the gravel into the water heating up the space it occupies
In Line Heaters
This type of heater allows you to suction the water and pump through them and this warming up the water consider as it passes through. It can be sued together with a UV sterilizer. The water from the tank is pumped out of the tank and through these in line heaters and then the heated water is sent back to the tank.
In Filter Heaters
There are some heaters that contain a canister filter with a built in heater. The water is channeled through the filter and is warmed up nicely before it flows back to the fish tank.