The Dennerle CO2 Nano Flipper is a effective and extremely compact CO2 diffusor for all mini aquaria from 10 up to 40 litres conten.Mode of functioning Dennerle CO2 Nano Flipper:The CO2 bubbles issue from the opening at the bottom of the Flipper and rise along the channels. Part of the CO2 dissolves in the aquarium water in the process. The rest accumulates in the collector, from where it is released into the water. The safe design of the collector ensures that the small quantities of CO2 which are customary for nano aquaria are effectively dissolved, while undesired large quantities of CO2 are discharged automatically via the waste gas vent. The scope of delivery thus includes 2 collectors - the smaller one for 10-25 l aquaria, and the larger one for 25-40 l aquaria.The crucial advantage over the CO2 diffusors with ceramic membrane which are commonly used for nano aquaria is that the Dennerle Nano Flipper does not produce any counterpressure. This means that it responds directly to ch