Guys........man have I been busy!! I didn't wait this long to answer on purpose. I had a culture of Moina goin for about a year and a half. Piece of cake. It was in a 10 gallon bare tank. every day to every othewr day I would feed one of three things. 1) Wheat Flour..........you find it in the normal grocery store. Take a pinch between your thumb and finger and put it in a small glass of water, mix it up and throw it in the Moina tank. It should just make it cloudy eenough to just see through it. This is what I feed for about a year before I started the next two items. 2) Green water..........no recipe needed. Just keep the green water coming. I couldn't keep up the green water......couldn't produce enough and got weary of trying! 3) Roti-Rich........another fellow in the local club was daphnia Magna....he had purchaced Roti-Rich and was successful so I bought some and it's super. It is a liquid green goopey stuf intended for raising 'micro-thingys'......the add is in the back of FAMA.....you keep it in the 'frig and every day take 5-6-7-8 drops and put it in the tank and it clouds the tank like the wheat flour and the next day it's as clear as if there was a filter on the tank. Caution.............1) Always use OLD tank water to set up the culture. 2) Every 4-5-6-7 days siphon off the bottom scum and replace with OLD tank water from a tank you are draining. 3) keep a snail or 2-3 in the tank 4) slight airation.....with and aiirstone or something.....just barely move the water. You will have enough daphnia to feed a bit of daphnia to 5-6-7 tanks most every day.......every other day for sure. I haven't read the literature y0ou folks have refered to but that's my experience. What happen to it?????????? A "friend" gave me what was left of his culture and there was a "passenger".......HYDRA.......that was 7-8-9 months ago and I am still fighting the HYDRA and I lost the culture to the hydra....... Have a good day!!! Mike