You can flower from seed, but I'd let those veg more. No, a little light is not ok.
Here is a long thread about 12/12 from seed https://www.rollitup.org/indoor-growing/416589-12-12-seed-thread.html the benefits are shorter harvest time and smaller plants.
If any light gets to your plants it will destroy the flowering hormone that builds up during darkness. I can't remember really, but I seem to recall reading a while ago that as little as 3 footcandles of light can fuck shit up. Not 100% sure about that though.
Here's my OG13 at day 33, after being topped and severely heat stressed.. not looking too good but better than the skunk#1 i had.
View attachment 2266158
And than again 6 days later, after I got temps under control, looking much better.
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I'd say it feel pretty normal anymore, but heat streets gives my plants a different feel, kind of like plastic I guess, and those temps are pretty hot. My temps were around 98 when mine was heat stressed and it just about stopped growing, it gets up to 91 sometimes when it's really hot out but usually no higher than 88. My humidity is right around the same as your's, it's been humid and hot as balls lately.
The first pic you posted kind of looks heat stressed, the way it's all bunched up where the new growth is, that happens when it's heat stressed.
That same plant also looks like it may be over nuted, because the way the leaves curl downward like that, but it could also just be from the heat.
I'm inside though, and I've heard plants can stand higher temps outside, but 95 seems pretty high, but maybe not for outside, I really don't know.
i just popped one of my og13, maybe a week old. i can already smell it by justrubbing the leaves.
Post some pics, I'll be updating soon before I go 12/12
When are you putting your's under 12/12? I'm going to do an SOG using clones from my og13. I"ve already taken a few that are doing very well. I'm gonna go 12/12 in the next 10-15 days I think, keep a veg area.