Need help fast please!!!!! Babies aren"t doing well

Hello,

I am a long time lurker who hardly posts(for legal reasons). I am in dire need for some help fast. I have 2 White Berry and 1 Blue Cheese in the 3rd week of flowering. I don't know exactly how many days because in past grows I didn't wont my harvest to be best on days. This is first grow I have had major problems.

-Lets start with a little history-

I was trying a couple auto-flowering this go around. So I vegged my girls a good month more than normal. I had some Sativa's growing with them but had to move because of height restrictions. I am feeding my girls the following.....

Ocean Forest and Perlite Soil mix
The complete Fox Farms Line of nutrients and solubles.
Nitrozime
Calmag+
Guano tea once a week
Neem Oil and LadyBugs for pest
Liquid Light
Superthrive

Any way the Auto-Flowers messed me up I wasn't planning on my other girls getting so big. I had them in too small of pots to begin with. So when she first started showing Mag. def. I added the Cal-Mag+., she still didn't get better. So I started thinking they were root bound once they started locking out. By then it was 2 weeks into flowering but I went ahead and transferred anyway into 16L pots. I waited a couple of days for them to adjust to the transfer and then flushed each with 4gal of PHed water. 4 days later there was no moisture in the soil so I watered them with a gallon each of 1/4 strength Foxfarms sched. with CalMag, Superthrive and Nitrozime. I have steadily kept my water Phed to 6.3-6.5. And that brings me to where I'm at now. Growth is real slow. Leaves curl under, signs of N-def, P-def., etc.

Below are some pictures of the 2 White Berry girls and then will be the Blue Cheese girl

My poor Girls and their Buds are suffering very badly please HELP THEM!!!!!!!

Nugz

Nitrogen Deficiencies:
Plants will exhibit lack of vigor, slow growth and will be weak and stunted. Quality and yield will be significantly reduced. Older leaves become yellow (chlorotic) from lack of chlorophyll. Deficient plants will exhibit uniform light green to yellow on older leaves, these leaves may die and drop. Leaf margins will not curled up noticeably. Chlorosis will eventually spread throughout the plant. Stems, petioles and lower leaf surfaces may turn purple.

White Berry Pics

Nugz

Blue Cheese Pics

Nugz

nute deff. happens during flower and how soon in flowerpending on the amount of nitregon in your bloom nutes..

Also, My temps have been between 65-70F with lights off 75-80 lights on

Here is a couple of group shots

I'd say up the strength from 1/4 to 1/2. They look like they can handle it.

nothing wrong with them temps at all.

Thanks alot..... anymore opinions? I know I have a N-Def. but I am afraid the nutes are locked up instead of just a deficiency and flushing didn't seem to help much.... And I don't want to foliar feed 3 weeks into flowering for fear of bud rot....

Right before I switched to 12/12 I raised my nutrient strength from 1/4 to 1/2 and that is when this mess first started happening

Superthrive should not be used during flowering. It is best to use it during veg only and then very sparingly, maybe once or twice during veg and only a drop per gallon is enough. I'd quit using it now