my betta had had fun rot on and off since putting him in his new tank.
my betta fish is 4-5 years old. i got him from our local fish store. he is a veil tail. he originally was in a 10 gallon with some khulis and cory’s, but i felt bad for them so i moved them to a 20 gal long tank to better suit their needs. the tank is fully planted, and completely self sustaining as far as cleaning goes, though i do have filters running 24/7, and heating.
he’s getting old and is going blind, i have to give him assistance when feeling him. ever since i changed his tank, he has gotten fin rot and i feel like right when it’s going away, it comes right back. tannins seem to help it a lot, medication makes it worse (i use paraguard).
if anyone has recommendations or knows any good shops or brands to buy tannins from, please let me know. i have tried putting him back in a smaller tank but he gets freaked out. i’m also about to add a back pothos plant into my tank and im hoping it’ll give him another place to rest on.
any advice is appreciated, this is my first time dealing with fin rot. i also want to say that none of my other fish are showing signs of being sick and everyone in the tank is thriving outside of fintys (my betta) fin problems.