Jock Horror Lowryder fluorescent grow

Hey everyone,

Some general info...
I've been working as a caregiver on several plants now. The seeds given to me were Jock Horror Autoflower feminized(5). I am using fluorescent lights on a 18/6 hr interval, two rows of two 40watt tube lights(1 soft white, 1 warm red in each row) supplemented by six 23 watt fluor.bulbs( 3 on each side) which are 2300/2700 lumens I think. I try to keep the lights about an inch away from the tops of the plants and also have a fan going in sync with the timer. So I started the grow exactly 4 weeks and 4 days ago today, and up until last week they were fine, but recently I've been noticing a few problems:

* Light greenish/yellowing of the leaves- what I interpreted as nitrogen deficiency... some of these have darker veins, possible a magnesium def?
-For this, I gave them some nutes I had lying around- Vigoro 10-10-10. Only a teaspoon or less per cup. I think I poured some of that water directly on the leaves because now there is a small white residue in some spots(is that bad?)

* Some of the leaves have been folding inwards but not too much. I've been told this matters but frankly, I don't know.

* One of the plants seems very droopy compared to the others...:?:


I would like to switch to some good organic fertilizer or even an organic/chem mix that would help me with these problems and are also beneficial to producing bigger, stronger buds. Any helpful comments you might have as to which nutrients/fertilizer would be best or any other comments in general are much appreciated.
 

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So the plant that was drooping in the 3rd picture is no longer drooping but I would still like to know what causes that problem. Also, I didn't mention that the soil I used was Scotts Moisture Advanced Potting soil- Pretty basic. Yeah, I know I should've invested some money there but I was limited to options at the time.

Any advice on the problems I mentioned above? Thanks for your help.
 
yea BD..im having similar probs with mine,useing the same kind of light set up as you..see my post and pics,would like to solve this prob.also
 
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