While they won't cause any problems with corals directly, they are massive, and can disrupt coral stacks when moving about. They will feed on crustaceans. Additionally, their relatively huge biomass is going to add a lot to the tank's bioload - and they will be much too large for a 75 gallon once they reach full size. Some zebra morays have issues starting to feed in captivity. Also, with Hawaii shut down for fish collecting now, zebra moray eels you may find for sale will have likely been collected in other regions, and the ones from Hawaii always were stronger. Personally, I'd take a pass. What about a dwarf golden moray? Pricey I know,
Jay
