Sally lightfoot crabs any good for bubble algae?

[awomias]

I have a 125 gal reef tank that has a lot of bubble algae. Read posts and am thinking of getting 4 emerald green crabs ....does anyone have any experience with Sally lightfoot crabs eating bubble algae/ aggressive behaviour/reef safe? .....or should I just get more emerald green crabs instead?

[bkwudzjeep]

Typically, emerald crabs will eat the bubble algae, but even that can be hit or miss.
A friend of mine had his Sally Lightfoot go after some of his fish, not sure if it will ever get any......but I've seen stranger things in this hobby.

[Sk8r]

I always liked the sally lightfoots until I saw a picture of a grown one. I haven't found anything yet that will tackle vallonia---my scribbled rabbitfish has eaten a couple, but I think mostly by mistake: the caulerpa is grown over it.