First time hps/mh grow 4 weeks into flowering PROBLEMS. Any input?

Hey im about 4 weeks into flowering and some of the plants are yellowing and some are turning purple(the leaves). i figured it was lack of N so i added some more N based nutes from general organics. im running a 600w hps bulb in my grow tent. Here are some pictures. if anyone has an explanation please help me and let me know how to correct this....
thanks.......

what kind of soil, looks like cal/mag def

i use gen organics also are u using the cal/mag

im using this organic peat soil i got in cali at a grow store i forgot what its called.
yes ive used cal/mag. i have that Gen organics go box with all the nutes.
now its just gotten worse and i dont want it to ruin my yeild! Heres another picture! gettin worse

Fml!!!!!!!

It looks to me as if you have locked out your soil The roots are unable to take in any of the overabundance of nutrients in your soil, and are leeching them from your leaves, causing them to slowely become necrotic. On top of that it looks as if you are still in a small pot. I would flush and transplant. Brew a tea with some hummus, worm castings, dolomite lime, seakelp, and a mild fish emulsion. Let it brew for a good 18 hours to let the lime break down and the microbes to grow. 2 days after the flush apply a light watering at a rate of 1 tablespoon tea per gallon. Water with neutral water for its next watering and if it is getting better apply the same amount of the tea until you see healthy new growth. Or you could just ride it out..... either way your yield will be reduced exponentially.. I'm sorry.... maybe you can fill us in on your feeding schedule....

And how old is that plant? It looks like a 2 week old clone or a 4 week old seedling.... either way.. too early to flower and way too early to hit with nutes... especially the strength nutes you have...

nute lockout? you sure? Can anyone else back this up???
and the plants are18-25 inches tall, i had to keep them smaller because of hight issues and space. they vegged for a month(they were only about 10 inches) and have been flowering for 3 weeks. i feed once a week and water a couple times after.
i have some seakelp and fish elmusion. i may try your suggestion if no one else pops on here and gives me more advice. but thanks for your input.
just dont want them to die. drove 2,000 miles to cali to pick up these damn seeds.

Take pictures of the WHOLE plant... that will really help.

Okay, hold on.

i am not PROFESSIONAL grower, but from what i see it looks like your giving to much nutes.. remember less nutes is better then more

the damn photobucket website is down so i cant upload the new pictures.

hold up i think i can do it from my phone, and yall are gonna tell me whats wrong wit her.

I think I figured a way to upload them from my phone. Here are recent pics from
Lastnight. What the hell is wrong with her??? The other ones are fine. Her growth is stunted.

I think you need to get your info straight... that plant looks to be 6 or 7 inches tall not 18 or 20... and like i said before.. it simply doesnt have the structure for budding nor handling a large amount of nutrients.... patience is a good thing to learn