Can you bury a Visi stealth heater under the gravel? It would make it less visible, and most less likely to burn fish if it malfunctioned.
Can/should it be done?
Can/should it be done?
Yeah, if you bury it, it will quickly heat up the wet gravel around itself and trigger the thermostatic shutoff. It won't ever heat your tank water because it's immediate area will be the "right" temperature.
I just purchased one of these for my 55 gallon tank about 2 weeks ago. According to the instructions it specifically states "No part of the heater should touch aquarium gravel or decorations."