Nudibranches

[justinl]

Originally Posted by whatcaneyedo

The main thing to remember is that all nudibranchs eat sessile animals so you wont find any that eat algae or anything that moves for that matter.

for the most part, true. Off the top of my head, lion's mane nudibranchs (a coldwater species, melibe leonina) are filter feeders; the only exception to the rule that I know of. random trivia: they also emit a slime that smells exactly like watermelon jollyranchers.