[Pavel Chaloupka]

I only feed them as running a culture requires some space, they do not multiply as fast as Moina for example. But some of the guys I know run outdoor cultures during the summer. I have no personal experience with how much effort it takes to maintain the reproduction without the resting eggs, but from what I know from papers, they should be quite hardy and able to tolerate high levels of nitrogen in all common forms. Biggest problems in the cultures are same during the feeding when some powder substances are used. Bacteria and high levels of suspended solids covered by bacteria that consume the oxygen.