i have the lettuce nudi's in my frag tank as I've got a raging hair algae problem. there's 3 in a 30 breeder and they're eating it, just not fast enough. I just threw in hermit crabs and a rabbit fish...and ordered a new light bulb. hopefully I'll be able to get rid of that stuff in there as its HORRIBLE!
but again. My lettuce nudi's DO eat hair algae...just not fast enough!