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Hello, I'm really interested in adding some Halocaridina rubra to one of my preexisting brackish setups.
It's an 180litre currently stocked with 1x Poecilia salvatoris male, 3x Poecilia sphenops males, 7x Poecilia reticulata males, 6x Oryzias latipes, 1x Oryzias dracena, and some Palaemon varians, neritina sp., and faunus ater, planted with vallisneria gigantea and rhizophora mangle.

Would the shrimps be compatible with this livestock (especially the fishes) or would they risk being eaten? Thank you

Shrimps are at the base of the food chain, so....

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I wouldn’t risk it.


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If you have one to spare/sacrifice, you can test with one and see how it goes.

No completely incompatible. These shrimp will try to hide and get away. Shrimp such as these should never be kept with fish. I even at one point tried to keep Metabetaeus Lohena aka Alpha Opae Ula in a tank with wild western mosquitofish (Gambusia affinis). The tank had around 60 ML with 8 small mosquito fish. The shrimp hid among the lava rocks and never came out.

I know of someone who kept P. Cyanodorsalis with Opae Ula successfully. Shrimp are not hiding.