I have a BGK who was bitten 3 times from senegals..The 1st bite took the tip from his tail off..The 2nd time he was bit was in the belly/gill area and i thought he was gonna die..He had meat hanging out on one side...He started healing alittle and the fuggas got him again mid body...He is by himself now in a diff tank and seems to be making full recovery..I'm using the marine dark lights and the little bugga is pretty active and enjoying eating by himself!