the archer looks a little beat up, I have 2 archers in a 55 with a moray and a columb. shark. The smaller of the 2 archers has been in the tank for a little over a month, and is in a similar condition to the one pictured, anything I can do to help him along, and get him patched up. They are fed and alternating diet of live crickets and freeze dried krill, occasionally they steel some frozen shrimp from the moray. I am wondering if perhaps the archer has some sort of infection? Any help would be appreciated