With Co2 Tabs you can offer the carbon dioxide directly to your plants and significantly increase the speed of growth. Only healthy plants will be able to effectively use this extra input. During extensive testing we perceived as the possible side affect a shortage of magnesium due to the high speed of growth. To effectively prevent this we have added 1.2% magnesium sulfate.
The tabs release the Co2 in the water and thus stimulate the growth. Healthy plants can absorb many times more of this important nutrient, Co2, as is available in the air. Adding Co2 short before the dark period doesn't give any results, as the plant doesn't absorb Co2 in the dark! The tabs bond the Co2 about 4 to 6 hours to the offered water