Green Utopia
New Member
I switched to my HPS lights right when I went to 12/12 and had huge stretch. They went from 12" to 34 ", almost 3X the height. I've read since that leaving them under MH or grow lights with a higher ratio of blue light for the first 2 weeks of 12/12 helps to limit stretch. I'll be trying that next time myself. Keeping the day/night temps closer together is supposed to help limit stretch too. Like no more than 10 degrees difference.
C'ya.
That's great info. I will be using my MH for the first part of flower next run. I see some plants go from 12" to 36" in two weeks under the HPS. Wouldn't be so bad, except the internodal lengthening. LR - do you think the MH would help that as well, or just slow the overall growth. Not sure if I'm making my question clear, but I bet you figure it out.
I had to edit cause I just saw the comments on Duct Tape. Using tape is no big deal at all. Using duct tape in grow room - not your best option. While its awesome for so many things - dt is neither heat nor moisture resistant. If used in a grow room it will lose its stickyness very quickly. I tried it to hold up mylar - big mistake.