- Reaction score
- More than 10 years
I have a heater in my 75 gallon tank that is less than 1 year old. Lately I've been hearing a loud clicking sound coming from what seems to be my heater. I try to isolate the sound but it's difficult. The only other thing it could be is my canister filter. It comes and goes but when it is happening is has a constant rhythm. It clicks every 2 seconds or so. Is it possible for a heater to do this? If so what can I do about it?