Emerald crabs- not safe for SPS

[SPS_Addiction]

Emerald crabs attack corals!!! I bought 2 emerald crabs. they were fine when little, but as they got bigger they started clawing on my corals, both LPS and SPS polyps. I still had bubble algae in my tank while they were doing that, so I banished them to my sump!

 

[jackson6745]

I have 20 of them in my 115g cube. I added so many to combat a bubble algae outbreak and it worked! I manually removed the very large ones, and the crabs took care of the rest. It's been 8 months and i haven't seen them harm any of my corals.