I hatch two batches a day every day. It takes just minutes a day with a little planning. I use empty one water bottles, cut off the tops, I have three in rotation, at all times. I dip some water out of a tank, add a good shake of eggs (San Francisco brand produce the best hatches in my opinion and experience), and put it on the shelf and run an air line to it. I have a valve that has room for four lines, that runs to a cheapo air pump, I keep one turned off but have one running to each of my active bottles. I do put a clothes pin on the top of each bottle to keep the air line all the way to the bottom of the bottle. Each time I pull a bottle, I put a new one in it's place. The eggs hatch faster the warmer the temperatures. Once you pull it off the air line, I have a desk lamp that I sit it under. The shells will float to the top and the brine will be right under in a pink cloud. You simply take a baster and suck up the shrimp and feed. If you end up with overage, you can keep it in the bottle and add a little marine snow to enrich them and put them back on the airline. It's a super easy process.