Yep they are, frontosas only. Might have 1 or 2 trumpet snails left, but nothing else living in this tank.That is puzzling.
Are they the only fish in the tank?
It's getting worse today for the big male, now he's clamping his fins and unlike before, he seems to get bothered, his flashings seem to get more and more violent. I think i will try a salt bath, i'm really not a fan of salt but i can give it a try. I don't know. If it's gill flukes, Paraguard/salt should have worked unless it's something else.