Emerald Crab

Emerald crabs are the go-to solution for aquarists battling persistent bubble algae infestations. These emerald-hued crustaceans possess a specialized feeding behaviour, actively hunting and consuming bubble algae that resists conventional removal methods. Beyond algae control, they scavenge detritus and uneaten food, maintaining tank cleanliness. Hardy and reef-safe, emerald crabs integrate well into established systems with ample rockwork for shelter. Ideal for 20-gallon tanks and larger, they deliver reliable biological pest control while adding visual interest to your aquascape.