I have 3 plants in 12/12 now for 5 weeks. They are not pre-flowering. I've had to go in there in their dark period several times, i used 1 cfl to see for 5 min then shut it back off. I'm not going in there like that again. But would that be enough to cause shock to where they won't pre-flower? They are 2-3 ft tall.

It has caused stress. It may take longer for full flowering to set in.

Once you are in 12/12 it is not about preflowers. It is about flowers. Preflowers will show on most strains under 24 hourr of light even once they are mature enough.

Short blasts wont hurt them that bad,just try not to do it any more

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Mr. Therapy Man

they could turn hermie on you! only use a green light if u have to interupt there night cycle.

what was so detrimental that you had to go in there during the dark period? couldn't you have waited till the lights came on? if you have been in the flowering stage for 5 weeks and no flowers there is an issue.

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hi till I die

In short your good man.... No big deal, just dont let it happen all the time

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My first and only grow Journal! Smoka da pot
http://www.rollitup.org/grow-journal...ml#post1777822

They look very healthy and full. Their just not flowering. Once they are stressed how long does that period last? It's my second grow, but my 1st for inside.I've made some mistakes but I'm getting there.

If you need to go in to your grow room during dark cycle, which I never recommend, use a colored light (regular, non-spectrum). A buddy of mine uses a green one and has never had it stress his plants. It's a bit harder to see until your eyes adjust, but much better than regular light. You're effectively "waking" the girls up. We were talking about "what-ifs" and the same question came up about going in during dark cycle and that was his solution. There is info about this out of the web as well if you want to surf it up...

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SmokeWeed
http://www.rollitup.org/hydroponics-...urnal-lst.html

Do you have any pics you can post??? Like supdro said, 5 weeks in to 12/12 with no visible flowers is very suspect. I'm 15 days in to flowering and already getting beautiful, large pre-flowers... So I'd say you are having some sort of issue. You're not growing an auto-flowering strain are you???

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SmokeWeed
http://www.rollitup.org/hydroponics-...urnal-lst.html

No. But to me the only other issues i can think of is the temp's get low in this attic area. It's either that or they are needing to be transplanted. It looks like they are ready to be transplanted again but we are moving in 2 weeks. I'm trying to wait until we get to the next place before doing that.