![]() ![]() There have been instances where certain individuals have shown aggression towards dwarf shrimp, so they may not be safe to keep with dwarf shrimp all of the time, particularly in the confines of a very small aquarium. It is much heftier, active, and more outgoing than the peaceful Thai Micro Crab ( Limnopilos naiyanetri), and for the most part it shares the same disposition. As stated above, like almost all crabs, it is an opportunistic omnivore. This crab is generally peaceful towards snails and most fish from what we have experienced but it may go after dwarf shrimp, very small snails, and slow moving fish that are very small. However, we recommend keeping your water line relatively low or keeping a lid on your aquarium, as these crabs are occasional escape artists. Unlike most “freshwater” crabs, this crab is truly fully aquatic. To our knowledge, spawning in the aquarium has not yet been reported. It inhabits both brackish and fully freshwater areas and it is suspected that this crab spawns in brackish water and its fry go through a larval stage similar to many amphidromous crustaceans that live in freshwater as adults but spawn in brackish areas. The Freshwater Pom Pom Crab reportedly has pockets of population throughout many tropical and sub-tropical regions in Africa, Asia, and Australia, particularly Madagascar, Taiwan, and New Caledonia. We also occasionally feed these crabs protein-rich frozen foods such as bloodworms, but only sparingly. In addition to eating food items that collect on the patches of hair (“pom poms”) that grow on its claws, it feeds on filamentous algae and detritus in the aquarium and will also readily accept high-quality dry foods that are rich in plant matter. Like most crabs, the Freshwater Pom Pom Crab is an omnivorous scavenger and an opportunistic hunter on occasion. Very little information is available for this crab, but we have done extensive research to determine proper husbandry for this crab at our in-house facility. This extremely rare freshwater crab has proven to be a very endearing, interesting, and durable candidate for the freshwater community aquarium. We are extremely proud and excited to be one of the only North American retailers to offer the freshwater Pom Pom Crab ( Ptychognathus barbatus), a true gem and consummate nano aquarium specimen!
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