I have an azure damsel (I think, he’s a half blue and half yellow damsel). He’s never been an issue, but started attacking a new fish I added today… as in taking nips out of fins. Nothing serious, but he was being pretty nasty. He also started going at other fish who were already in the tank. I think he’s finally starting to act like a damsel, so I need to do something with him, preferably remove him from that tank. I don’t know what the lfs would do with him if I gave him to them. They don’t have any displays he could be kept in, and I don’t think too many people are looking to buy an aggressive damsel lol. Could he live in my sump or is there too much risk of being sucked into the pump? The water flow is also pretty strong in there. The best I could do for another tank would maybe be 5 gallons at most. Could I keep him in a 5 gallon bucket? Obviously with rock, water flow, cycled, etc. I’d prefer to not give him to the lfs as he would probably wind up being bought as food or to cycle a tank.