getting 3600 lumens per sq from 250w hps

[Mctaggz]

Hi guys, the room area is 9sq, the question on my mind is.. do i need to add co2 or could i do without, without hurting yield?

Mctaggz Reviewed by Mctaggz on 11-17-2009. getting 3600 lumens per sq from 250w hps Hi guys, the room area is 9sq, the question on my mind is.. do i need to add co2 or could i do without, without hurting yield? Rating: 5