My emerald crab is eating my sand sifting star fish and trying to eat my yellow tang. Should I just get rid of him or is there somthing I can do to stop him from trying to eat everything?
I have never had an Emerald Crab do that but I have heard some say they do. Try feeding him. If that does not work, you can put him in your sump or take him to a LFS.
Eating your tang? I have the oddest mental image... along the david and goliath lines. I've found that the only reef safe crab is a porcelain crab, no matter what anyone says. I love our blue leg hermits, but they love to mess with frags.