The Emerald Crab, Mithrax sculptus, are one of the most popular marine crab species for the home aquarium. They thrive in tanks with plenty of live rock and a sandy substrate as the like to graze searching for algae. As voracious algae-eaters, they can be incredibly beneficial members of a cleanup crew. If there is not enough algae or seaweed, they can be supplementally fed with prepared meaty foods. They should, however, be fed regularly to keep them from becoming aggressive towards their tank mates. Emerald Crabs are particularly effective against bubble algae. There is a reason emerald crabs are so popular; they are very easy to care for, require almost no attention, and are effective in in controlling pesky algal blooms hence keeping the tank clean.
NOTE: These are adopted Emerald Crabs meaning they are missing one or more appendages that will eventually regenerate.
Dont be afraid of these guys!! The 2 I got are very healthy and extremely active. I love them and will order these again!!
Received both of my adopted emeralds safe and sound. They were both healthy and active. They were only missing a claw each, and I'm sure that will grow back upon the next molt.
Healthy and active. Great algae eater. Keeps rocks clean. Only a missing claw which will grow back.
I like emerald crabs, but I bought 2 and havnt seen them since I put them in the tank. They keep well hidden. They do eat the algae which is good, but I wish I saw them more.
I adopted one of these crabs and he is doing just fine in the tank. He cruises around during the moonlight phase of the light program. He pops out at feeding time to see what is happening.
My kids love finding him in the live rock when they can.