Good selection of Rainbow crabs available from 2" to 3" in size. The crabs are feeding and molting well, these crabs have really bright colours.
The Rainbow Crab is actually Cardisoma armatum and is an African species originally but now it's being bred in Malaysia. The crabs are easy to keep and make awesome pets!
Your aquarium will need to have a beach setup so they can get out of the water, or a small island. So long as you filter the water using a proper aquarium water filter and give the crab some land are then it will be happy. Also you can keep them in groups, so long as they have enough space to prevent them fighting.
Feeding rainbow crabs is easy, they are not fussy eaters.