Some idiot/monster put two crowntails in the same tiny cup and the smaller one's fins are absolutely shredded. I reported it to the manager and he just shrugged and walked away. Needless to say I brought them home (only paid for one) and fortunately had two empty tanks set up. Wednesday was not a good day for fish in my house. I have never cared for a battered fish before and don't know what to do for the little guy. His body looks pretty good, but his fins are just shredded. The only thing in the water at the moment is Prime. I didn't want to add anything until I knew what to add. I have to go out and buy it, so might as well buy the right thing.