Hi all, My Betta Blue has seriously torn his fins on something but I don’t know what on. I think it may have been the filter intake which he likes to swim under, I’m guessing maybe the impeller caught him or something but it’s pretty close to the gravel and I think maybe, his top fin would have got it not his tail. But I’m unsure. There’s nothing else that’s sharp in there other than a rough bit on a plant which I’ve now removed. I’ve covered the intake with a media baggie fastened with elastic so if it was that he can’t do it again. Besides it doesn’t look torn it looks shredded. This literally happened in the space of an hour, I fed him and he was fine. I checked him an hour later and his tail was shredded. I just checked him again and it looks worse. The shredded bits have come off and chunks are missing. What’s going on?