Why do heaters get that burnt crustyness on the heaters? I was told this fluval one I got wouldn't and it is starting to. What causes this? How can I prevent it? How long is this heater going last now?
Pics? Other then algae I've never got any type of build up on my freshwater heaters. Perhaps your tap water has high calcium or something thats building up on it.
Its on the outside, and when touching with your hand its rough. Should I take it out and soak it in something? This is the only heater its happening to out of 3 tanks. I had it happen before to another heater and the burnt brown stuff starting building up on it, so I just replaced that heater.
They do sell stuff to decalcify aquarium items but after seeing it, not so sure thats what it is. It only happens in one aquarium and not any of the others? Do you do anything different with that particular tank? Any decor that touches the heater?
Any of it come off if you scrape it with your fingernail?
Nothing different at all, no plants are near it or anything. I can not rub whats off it now, feels like it is stuck, unless I scarp with something but nervous about that unless it won't damage it.