Uca tetragonon, commonly referred to as the fiddler crab, is a captivating invertebrate species popular among marine aquarium enthusiasts. Recognisable by their enlarged claw used in communication and territorial displays, these crabs add both activity and interest to your tank.
Care Level: Moderate. Uca tetragonon requires stable water parameters and a suitable environment to thrive.
Feeding: Omnivorous scavengers, they benefit from a varied diet including algae wafers, sinking pellets, and occasional meaty foods such as brine shrimp or finely chopped seafood.
Compatibility: Generally peaceful but may show territorial behaviour towards conspecifics or similar species. Best kept with non-aggressive tank mates.
Reef Safety: With Caution. While generally reef safe, they may disturb small invertebrates or burrow in soft substrates, so monitor interactions carefully.
Tank Requirements: Minimum tank size of 30 litres is recommended to provide adequate space. A sandy or fine substrate is essential for burrowing behaviour. Moderate water flow and stable marine conditions are important.
Placement: Provide hiding places such as rockwork or PVC tubes to allow retreat and reduce stress.
Origin: Not Provided.
Maximum Size: Approximately 5 cm across the carapace.
Uca tetragonon is an excellent choice for hobbyists seeking an active and engaging crab species. Their unique behaviour and manageable care requirements make them a rewarding addition to suitably sized marine aquariums.
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