I’ve had this far for about 5 months now he’s been eating like a champ shrimp and feeder fish then all of a sudden about a week ago he stopped eating. His belly got these red lines and he’s keeping his mouth open all the time. I’m worried I might loose him if he doesn’t start eating soon. Can anybody tell me what might be going on. I moved him to this smaller tank for treatment but I don’t really know what to even treat him for.