I just bought my first betta just under a week ago. He's in a 1gal desktop minibow aquarium, the one with the built in filter and light.
pH: about 6.5-7
Carbonate hardness: 80-120ppm
I did a partial (25-35%) water change 2 days ago, and then again today. Tested the water each time, parameters have been the same each time. I add ammoniasafe and bettasafe to the water before I put it in the tank.
I've been trying to feed him the OmegaOne betta buffet pellets a couple times a day, but he'll either grab one, chew and spit, or he'll just stare at it and swim away.
When I brought him home his color was dark, red/blue body with iridescent blue on his back, but now he's pale red and the iridescence is gone, and his gills and chin have turned silver, and his eyes are a paler blue.
He isn't acting sick, he'll dart around the tank constantly unless he's sleeping. When the light is on he'll swim back and forth on one side of the tank against the glass, I think he can see his reflection because he just goes nuts on that side.
He isn't swimming sideways, I don't see any white fuzz or gold dust on him, he doesn't "twitch" but his movements are sudden and fast almost all the time.
Is he sick or just stressed and still getting used to his new home? Should I be worried?