I can't believe you have all that pro style equipment and use "unknown seeds." You can't cook a good steak from a bad cut. Start with good genetics and your plants will be a lot more giving. Surf the seeds and strains forum to find a seed bank.

I just use a 250w hps for my cab grow and I never have temp issues. 1000w sounds like it could get hot. An a/c unit would be good and wouldn't really raise humidity.
burnable Reviewed by burnable on . Heat effect on yield Hey all, Been a lurker here for a few months. Decided to jump right in. I've completed two grows and had the same problem both times. I'm having low weight in my yields. The bud sizes are large (fist size colas) but they have no weight. Smoke is good however. Growing in an 6x8 enclosure with a 1000W HPS light on a 4x4 ebb and flow table. Using Floranova grow and bloom with hydroshield and hydrozyme and molasses. I've solved alot of problems encountered during the first grow and Rating: 5