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Kick ass grow box ... want some advice ???????

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I just built a grow box that is 5 feet long 2 feet 8 inches width and 4 feet tall. I am using 3 hps 2 150 watts and one 400 watts along with other lights that combine for over 1,000 watts for the area. I used mylar on the entire inside and have a 122 cfm fan moving the air. I am going to use a bubbler hydroponics grow system, and also have a 20 lbs co2 tank with regulator. Everything is on timers. i am also using a scrog method.

My questions are?
how much and how often should i have the co2 tank on?

how many plants should i grow in my grow space?

how many grams should i expect to get from the amount of plants?

i am gorwing ice, jack horror, super ice, and northern light

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