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CO2 fertil. system basic compl. set f. aquarium plantsReady-to-connect CO2 fertiliser system to supply all aquarium plants in freshwater aquariums from 40 to 300 l ideallySimple assembly: screw pressure reducer onto cylinder, connect hose with bubble counter & diffuser, adjust bubble countHose screw connections for safety, check valve to prevent water from entering the cylinderCO2 concentration in aquarium water is indicated by the CO2/pH permanent test included and can be readjusted if requiredContains: 500g CO2 U bottle, pressure reducer, hose, bubble counter+ check valve, diffuser, CO2 perman. test, fertiliserCO2 fertiliser system complete set with disposable CO2 cylinder for vigorous and beautiful aquarium plants. Ready-to-connect CO2 fertiliser system. Provides the ideal supply for all aquarium plants in freshwater aquariums from 40 to 300 l while preventing algae. Simple assembly: screw pressure reducer onto cylinder, connect hose with bubble counter/check valve and diffuser, set the bubble count - done. Disposable CO2 storage cylinder. No hose slippage thanks to hose screw connections, check valve prevents water from entering the cylinder. The correct CO2 concentration in the aquarium water is checked via the display of the CO2/pH permanent test included and can be readjusted if required. Package contents: 500 g disposable CO2 cylinder, pressure reducer, 3 m hose, bubble counter with check valve, ceramic diffuser, permanent test with reagents, 2x plant fertiliser 100 ml, 1x daily fertiliser 10 ml