I want to set up a ten gallon shrimp tank w/ different species of shrimp. But I wanted to know if there are any other inverts (besides snails) that would be safe to keep in there with them.
I think the most common inverts are shrimp, snails, and crays. I've heard of some peaceful crays but really, I know almost nothing about crays, except that they're the pinchy ones, right?
Oh, you could try your hand at triops I once bought the kit but I could never get them to respawn, even after completely drying out and re-wetting the substrate. They're definitely interesting, though!
Not sure about dwarf crays. You could try researching about them. Certainly not the crays that are often available. They're ambush predators and will not hesitate to destroy other inverts.
There are freshwater clams, but some people don't like them. This is because they will bury themselves in the substrate, and they could die there, causing the water to foul. Some have been able to keep them alive with no problem. But they do best in a well established tank, they are filter feeders, like bamboo shrimp.
I've kept shrimp with dwarf species of crayfish, as well as some non dwarf (C. quadricarinatus) without problems. However, a 10g tank is to small for a quadricarianatus, they get to be about 10" long.
Keep in mind, any individual crayfish, of any species, can have a 'bad attitude'. They can turn on their tankmates, after living peacefully for an extended time.
I keep cajun dwarf crays in two different tanks... one with red cherries and dark greens, and one with some of msjinkd's blue black mystery shrimp... no problems. I do think they may have killed my assassin snails though.