Can An Aquarium Heater Touch The Gravel? [Which Can And Can’t]
Many aquarists try to conceal their heater to improve the aesthetics of their aquarium. But can an aquarium heater touch the gravel? An aquarium heater can’t touch the gravel. If it does, the temperature difference between the untouched portion of the heater’s glass tube and the area touching the gravel can create stress and break …
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