Do you treat your corals first

[reeferious]

a while ago bought a zoa rock from a local lfs didn't think much about it until noticing zoas were disappearing from tank zoa rock was placed in. took out and flipped one of the rocks over there were bunch of ethreal looking nudibranchs on underside. these nuds were so fairy looking i wouldn't have hesitate to keep them going if i had infinite zoas to feed them with. long story short finished off zoas and they starved into history.