is this to much homemade Co2?

I have a 4x4 tent thats 8 foot tall with 10 plants in it... I made 4 Co2 generators with 1 cup of sugar, 1 teaspoon of yeast, and 6 cups of warm water in 2 litre bottles... is the 4 co2 generators to much for this space??

I dont think that would be too much for a vegetative stage. It has been shown that exceedingly high levels of CO2 were very beneficial to vegetative growth, but it stunted somatic (fruit and seeds) growth. Any over-limit CO2 would be "exhaled" at night by your plants, so logically you could turn an oscillating fan on low, directed beneath the canopy to help facilitate that process. In which case it would behoove you to remove your CO2 generators at night and replace them in the morning, and maybe limit the flow with a common aquarium airline adjustment valve so that the somatic growth beneficially utilizes the free gas rather than become stunted by it when flowering.

I think 10 plants would absolutely devour 2 bottles of CO2 you would have to have some crazy yeast.

I use one SimplyOrange bottle with one hole drilled in the top, and a loop of airline tubing with holes in it, for 2 plants. I mix one cup sugar, 1 tsp yeast, and swish. Last time I refilled the bottle after 2 weeks the yeast almost exploded when the sugar made contact with the water. Plants adored the gesture.

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