They don t really know or care if there is another heater in the aquarium system.
Different aquarium heaters.
Each have their own strengths and weaknesses so see which one would be best for your tank.
Other aquarium heater types are immersible in sump substrate in filter and in line heaters.
Its electronic thermostat has an accuracy of 1 degree with a temperature range of 68 f to 88 f.
The second type is the immersible ones.
It s actually available in 4 versions with the 50w version good for up to 15 gallons.
Eheim jager aquarium thermostat heater.
The most common eater type is the submersible which is simply submerged in the water and can be attached to the side of the tank.
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In operation they are set to turn on start heating when the water temperature drops to a certain point then turn off when that temperature is exceeded.
This 300w heater is fully submersible and it can handle 100 gallons with a temperature range of 68 to 93 f.
The finnex electronic controller aquarium titanium tube with heater guard is highly corrosion resistant and will hold up for years in both fresh and saltwater tanks.
About aquarium heaters.
Some of its types are submersible having sand in it while other types are hanging heaters.
Available in a large range of watts from 25w to 300w this middle of the range heater is slim and unimposing on aquariums.
Aqueon pro heaters is durable shatterproof constructed and completely submersible.
Aquarium heaters are not complicated devices.
For the serious aquarist a titanium heater is designed for years of continuous use thanks to quality materials that are virtually indestructible.
300w 150w 50w submersible aquarium heater auto thermostat heater with suction led small mini temperature display aquarium fish tank heater for fish tank water bonus thermometer.
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Fluval e electronic heater.
They have one side of the aquarium and heat the water.
There are fluval e heaters available for many different sizes of aquarium from 15 gallons to 100 gallons.
These heaters consist of a glass tube with a heating coil in it wound in a ceramic or glass insert.
The eheim jager heater is a simple but effective heater and comes in a range of sizes suitable to heat tanks up to 220 gallons.