CO2 refill set ARKA mySCAPE Refiller 800 g (2x400 g) DIY CO₂ solution with citric acid & baking soda easy dosing long lasting for planted aquariums safe efficient aquascaping

CO2 refill set for planted aquariums – Contains 400 g citric acid and 400 g sodium bicarbonate for reliable CO2 production in refillable systems. Ideal for freshwater aquariums with demanding plants. Long-lasting supply for many CO2 cycles – The compact quantity is suitable for regular refilling. Clean dosing without a pressurised gas cylinder or pressure regulator. Compatible with mySCAPE and DIY systems – The refill set fits ARKA mySCAPE CO2 systems and many standard refillable CO2 systems. A practical solution for DIY aquascaping. Resealable and easy to store – The compact packaging keeps the components dry and clean. Observe the instructions for use and safety information on the packaging. ARKA quality for planted tanks – Developed for aquarists who rely on a dependable and economical CO2 supply. Supports healthy plant growth in modern aquascapes.