ITI CHUSS IVI
Member
I started some seedlings in foxfarm ocean forest soil under a 400W HPS. I've only given them water for the first two weeks and they are doing well. I just have a few questions: Can I start giving them nutrients and is it safe to start using CO2? I have six plants going in a 6ft. x 3ft. area. I also have another 400W HPS ready to be hooked up which would make 800W of HPS. Would that be too much or would i just get better yields with the proper ventilation. Each plant is in a 3 gallon pot. Please advise...