List of brackish aquarium invertebrate species

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This is a list of various species of invertebrates, animals without a backbone, that are commonly found in brackish aquariums kept by hobby aquarists. Some species are intentionally collected for their desirable aesthetic characteristics. Others are kept to serve a functional role such as consuming algae in the aquarium. Some species are present only incidentally or are pest species.



Fiddler Crab, Uca pugnax[1]
Perisesarma bidens, Red Clawed Crab

Amano Shrimp/Yamato Shrimp, Caridina multidentata

Grass Shrimp/Glass Shrimp, Palaemonetes paludosus

Blue Crab, Callinectes sapidus



Olive Nerite, Vittina usnea[2]


Lolliguncula is the only genus of cephalopods that is known to exist in brackish water. They can tolerate as low as 8.5 PPM of salt.