Emerald Crab Common Black Sea Urchin Recommended level: 360 – 420

Recommended level: 360 – 420 mg/l (ppm)

Bonding rock during aquascaping

Note however that when cured out of the water the colour will be darker representing the deep red coralline algae colour

In order to facilitate the dissolution of it

Emerald Crab Common Black Sea Urchin Recommended level: 360 – 420The Green Emerald Crab (Mithraculus sculptus) is a popular addition to marine aquariums, valued for its vibrant coloration and algae eating habits. Native to the Caribbean Sea and the Gulf of Mexico, this species is generally considered reef safe, though occasional reports suggest they may consume small fish or corals if not adequately fed. Essential Information: Common Names: Green Emerald Crab, Emerald Crab, Green Clinging Crab Scientific Name: