Broke my tank down because I was having problems with the tank being cloudy for more than a month. Fishes have been move to another tank and they are fine. During the breakdown, I noticed some brown hard stuff stuck to the bottom of the heater. it's on the back of it and it's kind of a hard film. I can get it off but it looks like I'll need a scraper or something.
Should I buy a new one?
Should I buy a new one?