In case you didn't know my male betta, Scuito, has been weird these past two weeks (might be more).
All he does is sleep on the bottom of the tank. Only coming up for air and food. His fins aren't spread out when he does swim. When he does swim his butt is always lower than his head. Then he goes back to the bottom, butt first.
Him and my female Ami were living in a split tank (I separated them) and these past two or three days she has been similar symptoms in some ways.
She is always sleeping on the top of the water, not as active as she once was (she was not full grown when I bought her in April). She still likes to eat. Her fins are also closed when she swims. But she is not dragging her butt.
I put a little Aquari-Sol as it treats clamped fins and sluggishness. On the last post we agreed that I need to get a heater, but am not able to till christmas when I hopefully get new tanks.
What can I do in the mean time?