Product Dimensions:1 x 1 x 1 cm; 244 Grams Item Form:Tablets Quantity:1 batteries required:No Item Weight:244 g Specifications: Item Type: CO2 Tablet Material: CO2 Tablet Size : 7*7*7cm/2.8*2.8*2.8inch Package List: 1* Bottle of CO2 Tablet About this item Easy to AbsorbPlace CO2 Tablets on different positions in your fish tank, which will quickly solve your plants, easy to absorb, safe and no harm. Easy to UseSimply drop the CO2 tablet into the aquarium water. Use one tablet for 20L water, once or twice a week. EfficiencyCO2 Tablet can increase CO2 content of fish tank, which will improve photosynthesis efficiency and plants growing better. ConvenientEasy and convenient way to provide CO2 for your aquarium plants to thrive. Put the tablet into CO2 atomizer can get better effect. Good ValueCO2 tablet is important for fish breeding, so better living condition will offer your fish a healthier living space. See more product details Easy to AbsorbPlace CO2 Tablets on different positions in your fish tank, which will quickly solve your plants, easy to absorb, safe and no harm. Easy to UseSimply drop the CO2 tablet into the aquarium water. Use one tablet for 20L water, once or twice a week. EfficiencyCO2 Tablet can increase CO2 content of fish tank, which will improve photosynthesis efficiency and plants growing better. ConvenientEasy and convenient way to provide CO2 for your aquarium plants to thrive. Put the tablet into CO2 atomizer can get better effect. Good ValueCO2 tablet is important for fish breeding, so better living condition will offer your fish a healthier living space.