It has been many years since I last hatched shrimp when I was breeding Apistogramma and angelfish, so I'm not the best person to answer you, but until someone more knowledgeable comes along...
It takes them 12-24 hours (normally) to hatch, this time can vary due to temperature and salinity. Wait until after 24 hours so most of the eggs will have hatched. Feed the newly hatched artemia soon, within 24-48 hours of hatching; they absorb the yolk sac after 24 hours and will require food from then on or they will become less nutritional as food. You can siphon them out with a piece of airline tubing which may help if there are eggs floating around, or pur out into a fine mesh net. Rinse in fresh water.
Byron.
It takes them 12-24 hours (normally) to hatch, this time can vary due to temperature and salinity. Wait until after 24 hours so most of the eggs will have hatched. Feed the newly hatched artemia soon, within 24-48 hours of hatching; they absorb the yolk sac after 24 hours and will require food from then on or they will become less nutritional as food. You can siphon them out with a piece of airline tubing which may help if there are eggs floating around, or pur out into a fine mesh net. Rinse in fresh water.
Byron.
