So... I'm super upset. Backstory: When I bought Spiridion, he had terrible fin rot. I QTed him for a few days, until it was clearing up a bit, and that was when I decided it would be okay to put him in the divvy'd tank with Phaistos and Hermes. I read a lot before I did it and the general consensus was that it was okay as long as I kept up with water changes and all. I did end up taking him out last night, though, because he was really stressed from the filter (it's super bad with current, even baffled :/ ). So he went to his own supposedly temporary 1/2 gal QT tank again. Sigh.
Then, today, I notice Phaistos has been flaring at his own reflection so much, he's ripped his caudal fin in two places. And his anal fin has the very slightest little black edges. There's no way to say it's part of his coloring, either. He's pink and white. So I took him out and put him in another QT tank because Hermes has been tailbiting, and I don't trust him not to get it, too. Then, I got so upset, I took out the dividers in the tank and Hermes is now swimming around twenty gallons all alone. He looks overjoyed, too. :/ I feel like a terrible fish mother for not being happy for Hermes's happiness, but man. I'm so sad this hasn't been working out.
I told my dad he could use the twenty gal, because my interest in fish has sparked his interest in fish. He wants to put something other than bettas in it, though. I'm just gonna go buy my boys some critter keepers. ULTIMATE FRUSTRATION.