hi all i have a oscar thats not very well i noticed the other day that he is not eating and laying on the floor so i did water change and checked water level and all fine now i see he was having a prolapse pushing something out of his bum and and at night he goes mad and tries to jump out of the tank any help please as i dont want to lose him and i can only get to the pet shop tomorrow afternoon i have seen tetra parasite guard on the net that kill parasite internal and external any help or advice would be great thanks