[Halocaridina]

This site says they originally come from marine inter-tidal areas and can survive from freshwater to marine.

https://aquaticarts.com/collections/fre ... led-limpet

Has anyone seen or kept these before?

[odin]

Those look really interesting! I've never seen them before to be honest but i'd love to give them a go if i could find some. Are you going to have a try with them?