good saltwater grass, plant eater?

[popwin]

I thought I had algae problem and bought over 100 snails, hermit, Lettuce Nudibranch (everything i heard can work) but later found out it's grass or plants which my clean crew doesn't wok on......

any suggestions on whatelse I can try?

thx

 

[fishysteve]

What size is your tank and a picture would be nice. We need to identify the plant to figure out what eats it.