I just bought another betta baby today, even though it was floating vertically, I couldn't resist because it was white (I love white fish). I was wondering if anyone could give me advice on how to help it swim upright again ):
I gave it clean water, and I have a temporary 1 gal bowl for it until it's big enough for my 10 gal, but I want to let it stay in its Petco cup, in case he sinks. The cup's floating in the 1 gal bowl, and the water's around 80. It doesn't want to eat, and it struggles to swim when it's not floating near the top of the water vertically.
EDIT: Forgot to add, his tail fin is clamped at the tip and red.