As a result of a constant supply of green water, I now have my moina (water flea) production is high gear. I have seven 3/4 gallon containers with a 1/8" hard plastic tube bubblier bubbling at a rate of about 2 bubble a second. No air stone as little bubbles get inside the moina's shell and incapacitates them at the surface.

To get started I got one culture going, then when it was going well I split it and added it to the other containers. Now I harvest one a day, saving 2 cups of culture to re-start it. Each one goes for a week. I clean the container, add the 2 cups of starter back in and top off with green water.

My next attempt is to use bran as a fertilizer for the algae. It is supposed to have nutrients essential for the moina. BTW Moina are 60% protein, so ideal to get fry off to a great start. Baby moina are smaller than baby brine shrimp, so even the smallest fry can enjoy them.