Drop one(1) CO2 for every 20L of aquarium water daily. Tablet will start to release micro CO2 bubbles. It takes about 2 hours for the CO2 tablet to dissolve completely.
Remark: For planting big amount of high light aquatic plants, it is recommended to use conventional CO2 cylinder supply for better results.
Ista Water Plant Co2 Tablet (100 tablets)
Features: Contains 100 tablets. Easy and convenient way to provide CO2 for your simple aquarium plants to thrive. By gradually dissolving in the water to release micro CO2 bubbles into the aquarium water.