I moved to a new house last May, and since then my betta Ando hasn't been quite the same (no bubble nests, not as energetic, never flaring, etc). I would joke that he was trying to commit fishy suicide, but now I think he really is.
About a week ago Ando stopped eating and starting lying on the bottom of his tank. I got concerned (he would eat the whole container of pellets if I let him) so two days ago I moved him to a small bowl (I'm guessing about 1/4 gallon) to help him get to the top and get air more easily. The temp is a steady 78 and he's in about two inches of water.
I feed him 2 pellets a day, and I changed his water once he started acting strange but it didn't help. I don't have a water testing kit so I don't know the parameters. I'm at work now, but I can get a picture when I go home at lunchtime.
-Aside from not eating/lying on the bottom, he's lying on his side in the corner of the bowl (making a C shape with his body).
-His pectoral fins are clamped and his pelvic fins have turned white/silver (the other fins look normal).
-His mouth is opening & closing constantly (it looks like he's talking).
-When he swims, he looks weirdly unbalanced. Almost like when a person is limping.
-Since I moved him to the smaller bowl, he developed slight popeye in one eye. He had it once before, a little more severely, a couple months ago, but at that point it was his only problem and he made a full recovery and went back to his normal self.
I treated him with a little tetracycline, since I had it around and it's what I used when he had popeye a few months ago. I've had him for two years. I can't figure out what's wrong, and I want to treat him right so he gets better. I don't want him to suffer either
(I have another betta in a separate tank which I keep next to Ando's, and that betta is fine).