This rotifer is a food source that is smaller than the ubiquitous nauplii but larger than infusoria and it does not pollute the water.
Rotifers can reproduce in a variety of mediums, the most common of which is a phytoplankton culture.
The advantage of this method of producing phytoplankton is its simplicity. When the water becomes so green that the guppies can barely be seen swimming, it is a suitable medium for culturing freshwater rotifers, which is in about four days. A summary of three different rotifer culture trials presented in Figure 2, shows that the rates of growth are similar, but not the same. This would mean that between 500 and 1,000 larvae could be supported using this simple method of rotifer production. For example, commercial hatcheries routinely produce larvae on the order of tens of thousands per week.