Weird colouring

[filthypork]

SOIL GROW

Strain - thseeds s.a.g.e + mk-ultra
# of Plants - 2 fo s.a.ge, 1 mk-ultra
Grow Stage - Flower, day 52
Light - 400 Watt HPS
Nutrients - General Hydronponics
RH - 20% to 50%
Room Temperature -73 to 82

Problem:
Colouring started from top leaves a week ago on all plants. Its reddish/violet/blackish colour and usually starts darkening from the tip of the leaves.

I started to control ph 2 weeks ago when i got the meter. I give them 6.0 water and the drain water ph is 7.0, last flushing was three days ago after the symptoms started. I dropped using ghe grow nutes and using now only micro and bloom 1:2 (5ml and 10ml in 10L).

 

[filthypork]

Its starting to spread more, 2 s.a.g.e.'s at the corners and mk-ultra in the middle.

Could it be Molybdenum deficiency?

 

[Sejd2131]

Your plants are feeding off each other. How you made it this far is amazing... You should have placed a few in bigger pots.. To tell you they need cal/mag at this stage, would be a waste. I would let them grow and see what happens...

 

[filthypork]

How are they feeding off each other? Each one is in 4 gallon air-pots, i thought that would be enough