talos4 said:I do this with my aquarium, a 2 liter bottle with sugar water yeast with airhose running into filter. When you have an aquarium and you see plants go from sitting there under your bright light, to instead sitting there with zillions of little oxygen bubble coming off the leaves, well, under water you get to see what the co2 does and how much it helps photosynthesis. Just wondering if it would work in my grow setup
try something like this:
Try sodium bicarbonate mixed with vinegar, 1 tsp: ~30cc- this will gush up all frothy as it releases CO2. do it just before you close the door on your plants. A MUCH cheaper way to provide CO2 is 2 Oz sugar in 2 liters of water in a bottle [sterilized 1st with bleach and water, then rinsed], or if you insist, yeast nutrient from a home brewing supplier. Add a brewing yeast, shake up and keep at 25 deg Celsius [~70 F] . Over next 2 weeks or so it will brew up about 1/2 Oz CO2 for every Oz sugar used. Keep a few going at once, starting a new one every 3 days or so.