More info
Datasheet
| Minimum Tank Size | 50 litres / 13.21 US gallons |
| Maximum Size | 4.0cm / 1.57inches |
| Reef Compatible | Always reef safe |
| Temperament | Peaceful |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Emerald/Mithrax Crab (Mithraculus sculptus) belongs to the Majoidea family of Mithraculus crabs. Native to the West Atlantic region, these crabs have a maximum size of 4.0cm and are considered hardy creatures that are suitable for most aquarium setups.
Aquarium Suitability
Emerald/Mithrax Crabs are generally peaceful in temperament, making them well-suited for community tanks. They are effective algae-eaters, particularly known for consuming green hair algae and filamentous algae. While they may nibble on soft coral and LPS if food is scarce, they are typically considered reef safe when well-fed.
Care and Hardiness
This species of crab has a high level of hardiness, aiding in its adaptability to different tank environments. They thrive in aquariums with appropriate water conditions, including a pH range of 8.1-8.4, a specific gravity of 1.020-1.025, and a temperature between 22.2-25.6°C. The recommended diet for Emerald/Mithrax Crabs includes macroalgae (such as seaweed or nori) and microalgae like spirulina.
Reef Suitability
Regarded as always reef safe, Emerald/Mithrax Crabs are a valuable addition to reef aquariums due to their algae-eating habits. However, it is essential to ensure the availability of sufficient food to prevent potential coral nibbling.
Aquarium Setup
To create an ideal environment for Emerald/Mithrax Crabs, a minimum tank size of 50 liters is recommended. Maintaining a pH level between 8.1-8.4, a specific gravity of 1.020-1.025, and a temperature range of 22.2-25.6°C is crucial. Providing ample hiding spots and suitable algae growth will enhance their well-being in the aquarium.
Behaviour
Known for their peaceful demeanor, Emerald/Mithrax Crabs are generally compatible with other tank mates. They actively forage for algae, contributing to the overall cleanliness of the tank. In case of specific algae issues, it is advised to research additional information on the crab's precise dietary needs.
Feeding and Diet
The diet of Emerald/Mithrax Crabs primarily consists of detritus, macroalgae, and microalgae like spirulina. Their voracious appetite for algae makes them effective natural cleaners in aquariums, helping to control algae growth and maintain water quality.
Habitat and Distribution
Emerald/Mithrax Crabs, belonging to the Majoidea family, are commonly found in the West Atlantic region. Their natural habitat includes rocky areas abundant with algae, where they play a crucial role in maintaining ecological balance through algae consumption.