Improve the growth & health of your plants with sufficient Co2 supply! - Atomic pores on the ceramic disc breaks down Carbon dioxide into tiny streams of bubbles - With high surface area per volume ratio, Co2 can easily dissolve - Experiments show Co2 dissolve rate close to 100% - Suitable for tanks about 55 US gallons (200 liters) - Compatible for pressurized Co2 tanks, but not yeast bottles Size: 1 inch in diameter... 
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