They should be fine. You are adding some plants? They are so tiny and have such a low bioload that in a planted tank their addition would cause very negligable shifts. They graze on plants, detritus, crushed flake, etc. Feed them like you would shrimp just a whole lot less as they are uber tiny. I haven't shipped out your secret santa yet, so if you want to add on just let me know and the shipping credit will apply to them as well.