I went to the LPS today to check out their latest shipment of snails, hoping to find some MTS. Alas, all they had was a single gold mystery snail left and after the disaster I've had trying to keep them alive, I've sworn off getting more. So I took a walk along the aisles, not intending to bring home anyone when I saw the writing on the tank: Female Betta 3.99.
I had to look. And there, amid a school of tetras and another species of fish that I don't recall, she was, being chased and nipped at by another fish. She eventually hid inside the only plant in the tank, a plastic hornwort, and I walked away, determined that my three boys were enough. But I went back and found her laying against the filter; I swore and waited, hoping she'd move, which she did, but I could tell she was weak. I decided that if I could get her from there and she survived, I'd adopt her out; if I couldn't lobby the store to give her to me, I'd have to be okay with that. So I found the fish room worker and made my case.
I think she's a veiltail; she's very pale and weak, seems to be unable to hold herself up and I'm not sure she'll make it through the night. But I've got her in warm, conditioned water with stress coat, and I'm hoping others can give advice.