Co2 questionnnnn

1

I have a question. After what time do you give the co2?

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2

When the lights are on you can add Co2

When the lights are off no Co2

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3

Should I give it from day one or wait for it to grow up a bit? Thx bro

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4

I start in week 2 of Veg but you can start sooner if you don’t mind the extra cost of Co2

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