Okay, so amongst the tank members are a group of weather loaches and a butterfly fish. When I put the butterfly in a month ago, I quickly realized the butterfly had ich (or most likely) and I treated the tank until it went away (4 days - only he had the symptoms). Somewhere between getting him, curing ich, and now, the tail fin of some of the weather loaches have been getting a bit jagged, very subtley and very slowly. Like tiny little guppy-size nips if there were any comparison. The jaggedness is not discoloured in any way, and not all of the loaches even seem to have it.
Is the butterfly biting them somehow? Like tiny little nibbles that show up no where else? I'm pretty sure he bit one of the kuhlis, he had a decent white 'butterfly-mouth' shaped mark on him (he's fine). Surely if he was biting, the fins would be ripped?
Could it be an after-effect of the nox ich medication? A bactierial thing? Sudden fin rot?
I'm stumped. They seem fine otherwise but I don't want to just wait and see if it goes away, it's just getting worse (very VERY slowly)
Please offer suggestions!
Is the butterfly biting them somehow? Like tiny little nibbles that show up no where else? I'm pretty sure he bit one of the kuhlis, he had a decent white 'butterfly-mouth' shaped mark on him (he's fine). Surely if he was biting, the fins would be ripped?
Could it be an after-effect of the nox ich medication? A bactierial thing? Sudden fin rot?
I'm stumped. They seem fine otherwise but I don't want to just wait and see if it goes away, it's just getting worse (very VERY slowly)
Please offer suggestions!