We were haveing a problem with Green Bubble Algae
We had read in a couple of different places that Green Emerald Crab were one way to deal with this.
So we ordered 10 Green Emerald Crabs from reeftopia.com.
They were far cheaper then any LFS.
In a few weeks all of the Green Bubble Algae was just gone and we had a LOT of it. While some people will say that crabs don’t belong in a “REEF TANK”.
We have never had any problems with Green Emerald Crabs.
Of course we may have just be very lucky.
Green Emerald Crabs are a blast to watch. They just scurry about the tank.
Sometimes they will disappear for a few days and then there they are.
We have 30+ pictures of Green Emerald Crabs here