Emerald Crab

The Emerald Crab is renowned for its ability to consume various forms of algae like filamentous algae and especially bubble algae in a saltwater aquarium. By doing so, the Emerald Crab helps to keep algae levels in check. These crabs don't just feed on algae; they are also efficient scavengers, actively cleaning up leftover food and debris.
Emerald Crabs are happiest in mature tanks with lots of live rock, which provides plenty of space for hiding and grazing. However, in cleaner tanks, where algae might not be abundant, additional feeding might be necessary to maintain the crabs health and activity levels.