Back   CO2 Systems and consumables Sera co2,  Hydor co2 systems   Hydor CO2 Professional system click on image for a larger picture Healthy and Luxuriant growth of aquarium plants is guaranteed by the presence of carbon dioxide, Hydor's CO2 system solves the problem of low CO2 levels in freshwater aquariums. One unique CO2 bottle last 260 days at 4 bubbles per minute which is the rate need for a 40 litre aquarium.   litre size of aquarium 40 60 80 100 120 150 200 300 days bottle last for 260 173 130 104 87 69 52 35 bubbles per minute 4 6 8 10 12 15 20 30   Hydor CO2 pro System  £95.00   Hydor CO2 Pro canister replacement bottle £13.99   Hydor CO2 Turbo Diffuser  £18.99 CO2 Turbo Diffuser for aquariums miniaturizes perfectly CO2 bubbles allowing perfect absorption of the substance. Hydor’s exclusive technology and high quality guarantee a long lasting and completely safe product.       Hydor CO2 basic system £29.00                      Simple to use for aquariums up to 150 ltr, re-usable, has special bubble counter.   Hydor CO2 basic system refill pack  £7.25        sera CO2-Start  £12.99 A simple and effective way to get CO2 into your tank, just pop the co2 tablet into the container it then creates and stores CO2 in a one way chamber that lets the co2 into the tank but doesn't let water in. Carbon dioxide (CO2) is the basic nutrient for plants. A well-dosed addition of CO2 also allows you to adjust the water to a slightly acidic pH range, which is preferred by most plants and fish kept in aquariums. sera start, our economically priced CO2 fertilization system requires no gas bottle, and is easy-to-install and convenient to use. comes complete with one tube of co2 tablets No gas bottles required comes complete with all you need   Sera CO2 Tablets   £3.95 Sera CO2 tablets for CO2 start (x20) sera CO2 Tabs are simply placed into the according slot of the CO2 diffusion reactor. Upon contact with aquarium water, each tablet releases approx. 100 ml (representing 2500 counting bubbles) of CO2, plus valuable trace elements and vitalizing substances - providing a continual, properly dosed presence in the tank.   Sera CO2 bottle   £43.95 Provided with an external safety valve and a protection cap. The economically and ecologically correct way to provide CO2. The re-usable gas bottles can be refilled without any problems and avoid costs and unnecessary waste. 500gm bottle