@Christovski
@Longicaudatus

Yeah I realized it was hard to see but he's moving around...and I think it must've been that. It just looks like his entire tail fin was completely removed! It looks strangely even up close but I can see some tearing in the tail fin. I'm going tomorrow to pick up something for his fins to make sure they dont get infected since all I have at home is melafix...which apparently is toxic to cories! I also plan to have him in a breeding box and put him back inside his original aquarium; he looks pretty depressed and I want to factor out he's like this because he's missing his other buddies. I can also medicate him there rather than possibly killing off my cycling bacteria.

At least my cycling tank is not looking bad at all. I just need to get rid of the .25 ammonia that is pervasive but not surprising for a new tank but my nitrites are 0 and my nitrates is 10.