[D-Nak]

Something i've noticed about blennies is that they like to back into crevices. This is not good if the gigantea is on a rock that's got holes in it that a blenny may back into.

If you get a gigantea and are careful about your rock selection (such as using Fiji rock instead of something more porous like Pukani) tou can prevent your blenny from backing into the gig.

However, if you have a pair of clowns that end up having the nem as the host, then they'll most likely keep your mandarin and blenny away, which indirectly protects them from getting eaten.