butterflies kill live rock?

[cody57]

i visited a lfs tonight and went over the fish list i want to add to my tank. he said butterfly fish would destroy my live rock. is this true??

 

[fshhub]

wont kill the rock, but will probably eat much of the live things on it. depending on the type and waht all is on the rock.

 

[irenicus]

They'll scavange on it. But don't tangs and angels do that as well?

 

[fshhub]

tangs and some angels scavenge vegetation. angels also scavenge inverts and corals and such as well.

 

[ophiura]

I would agree it is a trade off. I would prefer to see butterflyfish in a system with LR, than in a system without. Many fish eat the critters in the LR, but I wouldn't consider this necessarily 'killing' the LR, for reasons mentioned in the other thread
Besides, I don't know about the advice of this ya-who? posting above me LOL (Good to still see you! )