Who Gives A Fish Forums

trio wrote: ↑Sat Jun 07, 2025 11:25 pm My canister's been weird lately too. Flow's fine but it's making a rattling noise. Think it's the impeller? Got an Eheim 350 on a 40g breeder.

Probably the impeller shaft or debris stuck in it. Take it apart and clean it. If the noise continues, the impeller might be worn out.

My canister filter's flow has been dropping lately. Gonna clean it this weekend but not sure if I should replace the media or just rinse it. Running a Fluval 407 on a 75g with a mix of sponges and bio rings. Any tips?


If the sponges are compressed or torn, replace them. Otherwise, just rinse in ...

I'm considering adding a Flame Angel to my reef tank, despite the risks. I'm curious to know if they tend to pick on LPS, SPS, or soft corals more often. Since I'm planning a LPS tank, I'd like to know if they're generally safe around LPS corals. I thought they mostly left LPS alone, but might ...