floating sideways

A few days after the death of my first Betta, Yukine, I adopted a family member's very mistreated Betta who is named Chipper. Chipper has little to no fins, is going to be two in May, and formerly lived in a 1 gallon bowl that went uncleaned for months. When he came into my care, I was happy to...

I got my half moon, a couple of days ago, he looked very vibrant and active at the store, but today we noticed him not being able to swim very well. It looks as though his bum sinks (back half, tail area). That was in the morning. When I came home from school, he was floating on his side and...