So, one of my newer bettas Akihito has come up with either a bad case of Fin rot, or has started ripping his tail off from stress that i didn't think he was in. I had been out for a good week from Strep throat, and couldn't pay as much attention to them as usual. His diet is Bloodworms, and i have been feeding him a healthy amount (Probably spoiling him too much, since he has a big appetite) per day. I have another fish who is starting to have the same thing, only his is less severe and just looks like minimal fraying that i can hopefully treat. Now, i had fears that he was constipated, but he is pooping just fine.. I did, however, introduce a new 'home' to him. But when i cleaned it off before putting it in, i got a very harsh smell of Cinnamon. (I use candle warmers for houses, but all of them are suppose to be unused and thoroughly cleaned beforehand.) I'm kinda at a loss for what to do, because i don't want to risk using the wrong treatment (I have Melafix, but that seemed to put one of my older fish through insanity until he eventually died. I also have Ick cure on standby just in case. And last but not least, i use Bettasafe in my water BEFORE putting it in the tank.), or putting him though more stress and pain than already dealed. Any suggestions...??? Edit: I moved him into his original cup, and put a small amount of Melafix (Two drops) in the water. I'm not sure if this is just me being paranoid, or something going on, but he lightly curls up sometimes so that his head is right next to the end of his tail. When i try to get his attention, he calmly looks up and goes back to gently swimming around. He doesn't, however, SEEM to be in any pain that i can see... Maybe i'm just worrying too much after the last one died..??