veg tent problems. pics, and plenty details.

-1.5gallon of happyfrog soil.
-under a 400wMH lamp. 18/6
- in a 4x4x7ft tent.(indoor)
-Reverse Osmosis water
- cal mag add 1tsp/gallon ph adjust to 6.5-6.3 going in.
-fertz of all kind (more detail and i have questions here)
-temps/humidity 70-80* 30-50%humidty.. rarely ever up to 50. we'll see how summer goes...


some are clones some are from seed all are females, this is my mommy tent.

the first set of leaves is from a NLXhaze nirvana, and it is experience some type of problem... the leaves get spots, some yellow, get brittle, curl up and be completely brown and dead. mainly on the newest full leaves..

i thought it was a toxicity, and it might be, or if not toxicity, then maybe lockout for some other reason than that, i originally thought it was lockout/saltbuildup.... i also at the time had a low ph run off(sidestory: i called foxfarm product talked to a guy who worked in R&D w/ happyfrog, and said well of course your runoff is going to be in the 4.0, it has a high ppm, he said the best way to get an accurate test of soil, is to take 1/2 cup and mix it into about 2 cups of distilled water, then stick ur ph pen in........ i never did this but he also mention it could be and probably is a deficeincy, and so i try the opposite... after they dry out, i begin adding daily w/ every watering 1tsp of botanicare cal mag. often with a 1.5-2.2-2 micronutrients, iron EDTA,copper, molyb, etc. and more of the nitro grow 4-0-0 mix at 1/2 tsp/gallon and with 1/2-3/4 tsp of a 0-7-4 bloom. so we, but i mix off with biobizz bloom, w/ the nitrogen from the grow mix, and cal mag.

and it seems to have in the beginning to have given the plants a good boost like they needed it and liked it, and i thought they might need more but i gave them a good amount in the last 3-4 waterings.. before that the waterings were pretty empty with just calmag at 1/2-3/4tsp/gal

but i gave them a break from the nutrients and gave them just calmag at full strength yesterday.. im letting them go into a dry cycle and then im going to add more ferts alround, at half strenght.... Does this sound like a good idea to you...

my guess on what is wrong is somewhere in the either potassium(little spots) or phosphorus(big dead spots).... if not that then a calcium(little rust spots) or a magnesium deficiency(dead from middle to tip)?

next line up of pics is the Top 44 female. I wanna chop her and make a bunch of clones and reveg her, i need some vertical room in the tent.

tell me what u all think i am doing wrong or right?..

Ask questions please.

ventilation is adequit.

and heres some pics of the entire tent from a distance, and the final pics will be all female shiskaberry clones, doing alright.. for now but u can see some of the discolors leaves..

hello!!! anyone out there!!! i have some amazingly detailed post.. with amazing good pics...

i feel like a broken record but i think this is a magnesium defficiency. barring a PH problem with the water, which i'm sure you've checked that already. i've had the same problem before. i'm guessing you've had them in that soil for at least a month. this is where it usually started for me anyway. but i use ffof no the ffhf. i repotted and the problem went away. the next time i just mixed in some epsom to the ffof before i started and that seemed to cure it. just my two cents.