My betta has beet sitting towards the bottom of his tank, he won’t eat, and I woke up one morning and noticed his tail was gone 😞 he started swimming erratically and breathing heavy, and he’s been hiding for a week now. This started about 3 days after the heat wave and I noticed his tank had been sitting at 82 for about a week. I’m not sure what caused this and I’m not sure if it’s tail biting or a disease. I’ve been putting antibiotics in the water and a little bit of salt. I moved him to a hospital tank and can’t think of what else to do 😕 any help would be appreciated. He seems to be getting skinnier and continues to hide and won’t eat anything.