Darren Hanson answers; << I wonder why you don't just hatch your brine shrimp while still in the cysts? With a high quality product 90% or even more will hatch out in as little as 18 hours depending on salinity, pH and temperature. With careful siphoning, unhatched and empty cysts should not be a significant problem. >> This is a school project for my 6th grader. Did you say something about caref ul siphoning? She just picks up the hatchery and pours it through the net. That's the best I can get from her. Besides, no matter how careful you are, a few shells still get into the tank. Hey, here's an idea- do you suppose a short time in one of those food dehydraters they sell on the info-mercials would do the trick of drying them? Or does it get too hot in there? Bob