The Aqua Medic plankton light reactor II has a volume of approx. 5 l. A simple system for producing plankton in the natural food chain. Within the Aqua Medic plankton light reactor II, microalgae are cultivated using light, fertilizer, and the carbon dioxide content of the air. These can be fed directly to many filter-feeding invertebrates, or used to breed zooplankton. The integrated 10 W LED light provides sufficient light for a good breeding rate. If the nutrient content is sufficient, the mass of the algae can quadruple in 24 hours. The Aqua Medic plankton light reactor II is equipped with two connections for the simultaneous supply of air and CO2. If there is a high demand for plankton, the CO2 content can be increased by pH control. There is a holder for a pH probe in the lid. With normal requirements, however, additional CO2 is not required.For easy partial removal of plankton, there is a hose with dosing clamp and holder on the housings lid. Saltwater or freshwater algae, phy