Ok, so his fins still look awful, they are getting more ripped and discolored (slowly, but I can tell it's progressing) but he is still eating normally. He has been doing A LOT of bottom swimming the last few days, and more hiding, but the temperature/parameters are all fine. I have no idea what's going on with him. Like I said in my last post, I thought it was fin rot, but his water has always been in good condition. I treated him with AQ salt for about a week, but he was making no progress whatsoever. I have a picture, but it's not very clear. The tail fin is the most torn, but has less discoloration. The anal fin is getting worse, and has small spots of red/black and the white-ish color. The dorsal has the black and white color as well. PLEASE, if anyone has any ideas, let me know. I want to try and treat this before there is nothing I can do.