Apparatus, methods, and systems for maintaining healthy plankton populations

A method for maintaining plankton in a culture medium, the method comprising:

• moving a first area of a filter engaged with a filter body into the culture medium, the filter body having an interior cavity, the filter being adapted to keep the plankton and particles in the culture medium out of the interior cavity while permitting the culture medium to pass into the interior cavity;
• generating a filtered portion of the culture medium by passing a volume of the culture medium through the first area and into the interior cavity;
• outputting a filtered flow from a location in the interior cavity;
• rotating the filter body to
• remove the first area from the culture medium along with a number of the plankton and the particles attached to the first area, and
• move a second area of the filter into the culture medium;
• directing a cleaning fluid toward the filter body to move the number of the plankton and the particles off the first area and into the culture medium;
• converting the filtered flow into a processed flow by removing toxins from the filtered flow with a treatment system;
• inputting the processed flow to the culture medium;
• and
• continuously adding oxygen to the culture medium.