For the nutrition of many fish larvae, living plankton is a pre-condition. But also for feeding many invertebrates, esp. sponges and corals without Zooxanthellae, living Plankton is the only choice. The Aqua Medic plankton light reactor PRO with a filling volume of approx. 50 litres is a simple system for producing plankton in a natural food chain. Microalgae are cultivated in the Aqua Medic plankton light reactor PRO 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 50 W LED lighting ensures sufficient light and therefore a good reproduction rate. With a sufficient nutrient content, the mass of algae can quadruple in 24 hours. The Aqua Medic plankton light reactor PRO is equipped with an air connection including a regulating tap. A hose, also with a regulating tap, is attached to the reactor for easy partial removal of plankton. Saltwater or freshwater algae,