My poor lil guy is hovering near the top of the tank, his tail is really white, not red like usual and he isnt eating... he's just hovering there with his tail up. He isnt dead though... I dont know why... I cant check all of the levels in the tank cus I wont have a test kit until the 15th... the pH lvl is 6.4... I got him from a friend and he was swiming upside down and really sick and he has been doing really good up until yesterday...