For aquariums from 100 to 600 liters (26 – 159 USgal.). Flow rate adjustable from 1,000 to 2,400 l/h (264 – 634 USgal.). Energy consumption of the pump: approx. 10 to 31 W Energy consumption of the LED: 9 W Measurements of the reactor (L x W x H): 233 x 195 x 422 mm (9.2″ x 7.7″ x 16.6″) With Comline^® pump 2500 electronic and Turbelle^® Controller basic 7090.200. Functions of the TUNZE^® algae reactor MAR 3181: – Cultivation of algae in seawater and plants in freshwater – Biological detoxification of ecosystems by algae / plants – Reduction of nitrate and phosphate content – Filtration of the aquarium water – Production of food supplement for fish – Zooplankton refuge, serving as food for corals and fish – Enrichment of the water with oxygen