Cubano are you reffering ti the Yellow headed(Fimbriated eel)? Everyone bashes this eel to death. I have one in a 120 with Large yellow Tang and a medium sided blue chin trigger. He is an awesome eel. I feed him twice a week. The way I look at it as long as he is fed he won't "kill on sight" as many may make you believe. I almost did not get this eel cause everyone said its a fish killer. Yes, keeping this eel involves some risk, but there is risk with most eels, so enjoy it. Mine ate right away, but day 3 he was eatting, shrimp, clams, octo, and silversides. Just give it a mixed diet so he will stay healthy.