I watched a dvd on reefs and they say the parrot wrasse only eats coral rocks and rubble (not live coral) to get the nutrients out that they need then crap it out as sand.It showed them doin there thing and i thought staight away low nitrate poo,free sand 8) (Like no one else is thinking that).But i also have a pic of this fish with its teeth stuck in the side of a live brain coral so :-? .
Anyone tryed this fish.