Is Purple Stem makin plant drop?

i am a first time grower so please help me
and i'll Burn one up for ya on Harvest Day
as of my previouse thread i had concern with the purple color of my plant
i had 3 seed all from the same plant but now that i grew them only one of them show sign of purpling AND THIS IS MY FAV ONE out of 3

Plz The plant look sick to my eye's but i need PRO's Help!!

is my plant Weak?
Has it been Stunt? <I changed Floro earlier today from 9 watt to 14watt
Is it still healthy? and just resting it's young leaves

Dropping started when the sun went down
but how is this possible my plant is in the closet wit 24hour light

WHAT SHOULD I DO PLEASE SOMEONE !!HELP MY BABIES!!

The Day Befor Problem.. u can see the purple stems



The Day Of The Problem

looks great!!!!

In reviewing your plant....it looks great but I would upgrade your lighting. You need at least 3000 lumens during the flowering stage and 5000 lumens during the flowering. 400 watts should do the trick.

Also make sure your nutrient solution is rich in Nitrogen, Phosphorus, Magnesium, Potassium, Zinc, Molybedum, and Boron. During flowering calcium is VERY IMPORTANT.

Ph is should be maintain at 5.5-5.9; however up to 6.5 is ok but make sure you monitor it to make sure its not too high or too low.

Feed your plant once every 2 weeks or as needed. Water every 3-4 days or as needed. Be careful not to over feed or over water.

Your plant will need about 150ml of water per plant/per week. They will also need fresh air, so the room must be ventilated. (however, the fresh air should contain no tobacco smoke.)

At least eight hours of light a day must be provided. As you increase the light, the plants grow faster and show more females/less males. Sixteen hours of light per day seems to be the best combination, beyond this makes little or no appreciable difference in the plant quality. Another idea is to interrupt the night cycle with about one hour of light. This gives you more females.

Any other questions?

I forgot to ad ----P (Phosphorus) ...........Deficiency: Plants are stunted and older leaves often dark dull green in color. Stems, petioles may turn purple. Plant maturity is often delayed.