Blue mosaic fiddler crab (Uca tetragonon).

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Blue mosaic fiddler crab (Uca tetragonon).

These small reef safe crabs get to about 2” across. They are shy during the day, burying in the sand. They come out in the evening and then work through the night cleaning the sand. They are brightly coloured and entertaining additions to the reef aquarium. They do not require an area of land, they happily stay in the water. We recommend at least 1 per 50 litres of tank volume, you may add as many 1 per 10 litres if you wish.

SIZE
They are 1”-2” and can reach upto 2.5”.

COMPATABILITY
Reef safe. They can be kept singly, or in groups. Some fish such as Puffers and Triggers etc may try to eat them.