Almost time to flip with pictures!

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Hi people!

Not posted for a couple weeks, not had any major issues or concerns, everything seems to be ticking along nicely. A lot of you may be familiar with our setup, this is the first grow!
Any way, we plan to flip them in about 8 days or so and are now slowly working towards 12/12.


Very happy so far. See pictures, now got to about 37cm
I'm not overly concerned as it's such a small percentage, but some of the leaves have some sort of marking/deficiency?, it's hard to get a decent picture under a HPS but here you are;

Can anyone spot what it might be?
During the 12 hours of the HPS lamp being off, does the tent need to be completely light tight? I currently have one of the side mesh vents open, if it needs to be light tight i assume i need to run another vent pipe in?







Cheeers

[M_C]

You look a little over fed there mate, back down on the feed a little...

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You look a little over fed there mate, back down on the feed a little...

Cool alright. I've used 3ml, 2ml, 2ml for the last few feeds. I will use 1ml next feed which will be in a few days.
Cheers