Low temps 50 - 60 F (10 - 15 C)

So should I expect less flowers in so low temps? what about their quality? It's about 50F at night, 60 F during the day. Plants are from random bagseeds and they're already flowering.

Nah they can handle those temps fine....but it is trickier watering and watching lockouts

I grew year round fine in west tx....not to cold, rarely snows but yea

I dont know what lights your using but its warmer than that in the plant area during light on period isnt it?

60 - 65 F during the 12 hours of light, then colder at night. The light would be a 400 hps.
I think i can see signs of some sinister lockouts too. Couple of lower big fan leaves is purplish, some completely black like painted. But they look very much alive. Then other leaves are losing their green color, some grey - brownish spots appear. First light grey then turning brown, these leaves don't look healthy like the black ones. I don't think these are deficiencies..