Plants @ 3 weeks now, need some help!

Hey all,

I have a couple questions about my current grow: lowryder 2 and g13 armageddon...

I think it's shown in picture no 4 but there is some yellowing of leaves on the g13. I was thinking that it was a nutrient issue but ive been running them at 20% nutes for about two weeks now.

What the hell is that?

Also, on the lowryder 2 (picture 3) and g13 (pic 4) I used Uncle Ben's topping method. So far, I have been unable to see any new (axion?) growth out of the middle of either of these.

Please comment, I need yo help seen?

Well seeing as your plants are bushy as hell and theres leaves flying out of every square inch I would say a bit of yellowing would be expected due to some of the leaves not recieving adequate light due to other leaves. Your plants do look pretty dark green though which....

Ok i just looked at the picture and the brown spots on the leaves tell me your PH on the water may not be ideal and or chlorine burn. Also your problem is most likely not deficiency but maybe nutrient burn, thats what it looks like to me.

Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis. Starting at leaf margin or tip and progressing inward between the veins. Notice how the veins remain somewhat green though.

The leaves curl upwards like they're praying? They're praying for Mg! The tips may also twist.
This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding. That way the plants get all the nitrogen and Mg they need. The plants can be foliar feed at ½ teaspoon/quart of Epsom salts (first powdered and dissolved in some hot water). When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil.
If the starting water is above 200 ppm, that is pretty hard water, that will lock out mg with all of the calcium in the water. Either add a 1/4 teaspoon per gallon of epsom salts or lime (both will effectively reduce the lockout or invest into a reverse osmosis water filter.
Mg can get locked-up by too much Ca, Cl or ammonium nitrogen. Don't overdo Mg or you'll lock up other nutrients.