Just go down to your LFS and get yourself some Brine shrimp eggs, they only take about 18 hours to hatch. It is what I use when I have small Pbass fry. Make sure to buy several packages of it, so you can start another brew of BBS right after the first batch hatches. Another trick I use is to make several batches of it and pour the newly hatched BBS in ice trays then freeze while they are still orange and with egg sacks (this is when you want to feed the BBS to your fry or freeze because 8 hours after they hatch they have already consumed or used their egg sacks and therefore be much less nutritious for your fry)
I hatch all of my BBS in a two liter bottle I cut the bottom off of and I drilled and silicone a air line into the cap to keep the eggs moving around. Look on youtube and you'll find several DIY BBS hatching systems.
Hope this helps