I have two macrobrachium (long-arm) shrimp. they might be macrobrachium rosenbergii, but its difficult to ID.
They are about 4 inches long. one is definitely female, as i have seen her berried.
they will eat any fish they can stuff in their mouth (read: slow, dying, sleeping, or less than 2 inches long).
they are also perfectly happy scavenging on leftover fish food and swimming away possessively with algae tabs. two of them coexist relatively peacefully in a 50 gallon tank.
but here is the great thing about them: they will eat all of your pond snail eggs. any pond snail problem you may have will be gone within a month or two of putting them in the tank. that said, after they eat the snail eggs, they will switch to fish.
i thought i would check here first to see if anyone would like to take one or both of them before i see if any local fish stores will take them. i think they would have to be kept with no fish, or large fish.
the shrimp are free to a good home, but if you have any interesting plant cuttings or babies you would like to offer as a parting gift, those would be welcome, but not necessary.
i live in black rock, in bridgeport, ct.
let me know if you'd like me to add a picture.