I have a 14" long dragon moray that im thinking about adding to a tank of ours. hes is old and about as thick as a golf ball. the tank i want to put him in has a soldier fish and a large bow tie damsel and a small panther grouper. if kept well fed will the eel still eat these fish. the fish are about 3" each. there is alot of rock work and i cant imagine the eel being very quick being so old and slow. what would be ideal tank mates for an eel this size? exact fish ideas not anything it cant eat.