First COB grow questions

So this is my first ever indoor grow.
I have 5 1212 3500k 90cri running in a small closet. t during lights on are about 77°f and with lights off 64°f.

I started two plants from sees. Og kush and Sour Diesel.
The SD had problems with sprouting(i had help take off a small membrane, so it could open it's first leaves and I think it may have stunted it's growth? It is falling behind the og kush a little bit. Also it's leaves are darker.
Another thing I noticed is the purple color on the small new leaves. You know the middle point where the stem is growing and new set of leaves are coming out? It's kind of purple there. The coloration lessens when the leaves grow bigger, but still. Og kush also had the same thing going on, but less and now it's gone completely.
Also the first real leaves are wrinkled on the og kush, what could be causing that?

I added a side by side and a close up of the SD.

You can't really see the purple in the pic, but it's a little bit more prominant in real life

your OFF time temps are a little cold=== slower growth & colorations. Can run your lights at night and water/feed right at the beginning of the ON cycle, not before lights out to help.

good luck

PSUAGRO. said:

your OFF time temps are a little cold=== slower growth & colorations. Can run your lights at night and water/feed right at the beginning of the ON cycle, not before lights out to help.

good luck

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So I checked them today and It seems like the og kush has no purple now and is growing nicely. The SD is showing a little less purple now too, but is still small compared to the og kush and all the leaves are a few shades darker. Do you think it could be because of it's rough birth or what?

Where you bought it. I want a COB, too.

angelinalovesunflower said:

Where you bought it. I want a COB, too.

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The COBs ? Exportestonia on ebay