Are All Fish Tank Heaters Submersible?
Are All Fish Tank Heaters Submersible? Is this heater FULLY submersible, or only to the water line? All aquarium heaters are “submersible” by nature – but not all “fully.” Thanks! What are the different types of aquarium heaters? There are four basic types of aquarium heaters: immersible heaters, submersible heaters, substrate heaters, and filter heaters.