don't feed him live food, unless he went on hunger strike for extensive long period of time, like a month or two then give him some quarantined feeder (something healthy, not goldfish or rosy red, etc). I'm not sure how easy it is for you to find baby tilapia but something like that would work, or molly, swardtail, small cichlid like convicts are good as well.
from the look of it it has plenty fat reserve.
from the look of it it has plenty fat reserve.
