I am new to having a tank and I recently purchased a Cory catfish. (I have only had my tank set up 3 days previous) and itís looking quite ill. All of my other fish are doing well, including mg
other Cory, but this one seems to be struggling to breath. The first few days Iíve had him he stuck to the top of the tank, but in the last 24 hours heís been laying at the bottom and has only moved once. He is also taking quick shallow breaths and I noticed his fins are Ďbunching togetherí for lack of a better description. Can anyone help?