Hobbes Well-Known Member Jun 5, 2020 #2 . Looks ambitious, 17 plants in a 4x4. You've put a lot of work into your grow, one question about your exhaust - is your fan pushing air into the middle of the filter or pulling it trough the outside of the filter? .
. Looks ambitious, 17 plants in a 4x4. You've put a lot of work into your grow, one question about your exhaust - is your fan pushing air into the middle of the filter or pulling it trough the outside of the filter? .
