whats a good sub for emeral crabs?

[doobieman]

I have one emerald crab left from my cleaning crew, but I just caught it tring to eat my seahorse!!! What can I substitute for these guys?

 

[weberian]

I believe they are algae-eaters, so what about mexican red-legged hermit crabs? Actually, there are lots of other algae eaters but I don't know them all: lawnmower blenny, hermit crabs, snails, urchins. I'm sure other people can name more.

 

[alyssia]

I only keep the red hermits in my seahorse tank. The blue ones are too aggressive IMO.