Hi everyone! Looking for some help here. I have a 13.5g Fluval Evo. My protein skimmer has been making very loud rattling like noises. Any ideas? The water is filled about halfway up the chamber.
I don’t know your skimmer specifically, but a lot of them (pumps) make a racket if they get air bubbles in the impeller. Some have purge instructions. Might be worth a look through of the pump manual.