Hello everyone, I have a bit of a concern, I noticed a few hours ago my rectangulus trigger started swimming fast. Him and a puffer were added to a 250gal tank two days ago and that tank has been running for like a month now, all I’ve had in the tank is two small damsels, I tested the parameters and the ammonia shows a little high, but I had fed this morning some pieces of krill. The puffer and him ate most of it. But I don’t know what’s wrong with him or what I should do, I did add ammonia guard but I don’t think that does much. All the other fish look normal, he’s just swimming fast and looking a like discolored