i have a 3'x3' flood tray on a shelf with a air cooled 400 watt HPS above it. i've sealed in the bottom front of the table to the ceiling with plastic and the tray fits almost to the walls so it more or less seals off the shelf, but i still have almost an inch in some places of air space gaps because of the way my closet is built. is it necessary for my space to have a hermetic seal if i'm using co2 or will the gaps make little difference since they are mostly around the shelf that makes up my floor. if anyone has any ideas on how i can seal around my shelf to an uneven wall, please let me know. thanks.

gP

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