I would like to eventually add a few shrimp to my freshwater aquarium. I think they would be a nice visual interest. Now, not knowing anything about them I don't want to rush out and get any and hope for the best.

I have a planted 55g tank with tetras. No bottom dwellers yet. Are there any shrimps out there that would fit this set up?

Obviously they scavenge but what supplemental foods to they need?

Thanks for any help on this!