Emerald Crabs and Bubble Algae

[Fish]

Haha! Sounds like I've got nothing to lose, even if it doesn't touch the bubble algae it would still be a great addition to the tank. I think some of the horror stories I've read are from people having trouble with crabs that weren't real emeralds. I once heard that there are 10 different variety of crabs that are all sold under the name "emerald crab". Might be the case???

Thanks for the input everyone, I'm now on the hunt for 2 or 3. What is the concensus on how long these guys live in captivity?

- Chad