I left myself stupid proof instructions, in case it works and I want to do it again. I used marine salt rather than aquarium salt. Don't know if that was a good idea, but oh well, too late now. I'm planning to use the base as a water catch as well, so I weighed it down with water a bit to prevent tipping. The bottle neck will be used to change water and harvest shrimplets. I'm going to grind up some algae wafers to feed them before I feed them to the fish, assuming they hatch. I've been keeping the eggs in my fridge because my apartment was so darn warm. Anyway the plan is to let water out through a brine shrimp net, put some of the shrimplets back into the hatchery, and some into fresh water to add to my tanks. Hopefully now I'll be able to feed the coccina complex bettas who won't eat anything but live food.