what? I thought they were submersiblepnyklr3 said:If it's not submersible, it will have a "water level" line on it.
My 5 gallon tank has a submersible heater that also does not fit all the way. In addition to being submersible, it has a water line. I just make sure water covers that line.yvez9 said:i have a small heater that is submersible but the head sticks out of the water because the bowl is too small for it otherwise
it works just fine
In the old days they hung on the back and , 3/4s of my heaters still doCoral platy said:what? I thought they were submersiblepnyklr3 said:If it's not submersible, it will have a "water level" line on it.