I finally have a brine shrimp hatchery that is neat, clean, and effective (con't)

by Michael Marcotrigiano (first published in IFGA Bulletin, September '08)

Figure 4.
Left: Brine shrimp screen purchased from Brine Shrimp Direct. (http://www.brineshrimpdirect.com/) The bottom of it contains a nylon screen that has extremely tiny holes sized just right to catch newly hatched brine shrimp. Right: Hand-made screen holder made from molding scraps. It is laid on top of a cheap paint store poly pail. The brine shrimp screen fits in here suspended over the waste pail.

I keep my system right in the fish room which is heated to 79-81F. At this temperature I get maximum hatch in 24 hours, very convenient for timing the next batch. If I know I won't be home by then I start them with cold water to delay hatch since it takes a few hours for the water to reach 79-81F. A forty watt light kept on continuously so I can adjust the hatching temperature if need be (by moving the light closer). Light is suppose to improve hatch. The light also serves to give guppies a night light so they don't settle their tails on the bottom of the tank.