I have some Nannochloropsis going, but no copepod cultures at the moment. I had rotifers going for a little while in the house, but let them go “au naturale” in a 5 gallon bucket outside in the backyard.
Like Dogfish said, YouTube is a good resource. Up to you how small or big you want for your setup. You can get started for pretty close to nothing, the biggest expense will be a light and air pump unless you have spares laying around.
When you get your setup figured out and if you want some Nanno and/or some f/2(fertilizer) to get started shoot me a message.