cleaner wrasse, but they tend to not fair well in the home aquaria. ive also heard neon gobies will do the same, tho such a small fish in w/ bigger hungry tankmatescan lead to...a partially full predator fish
I don't think so if they are well fed. I have heard that eels will eat hermit crabs by breaking their shells but it hasn't happend to mine. A flame scallop is bigger.
Regarding cleaner wrasses, I used to have one and it constantly harrassed my fish trying to clean them.
cleaner wrasses will most likely not survive
and its irresponsible to take them off the reefs
and id say the scallop would be gone
clams are gladly ate
why not a scallop