JBL Proflora Co2 Taifun Spiral 5Loss free enrichment of the main plant nutrient carbon dioxide: CO2 reactor for freshwater aquariums from 40 to 200 l from a height of 12 cm Easy to install: use the special CO2 hose to connect the reactor to the CO2 fertiliser system (not included), use the suction holders to position the reactor in the aquarium Visible and efficient diffusion of CO2, operation without additional pump, no separate bubble counter necessary, easy to clean, completely