Magnesium Deficiency?

[vandowls]

Ok, here is another pic of my plants. Some of them have very yellow leaves and I was thinking magnesium deficiency.

[pergamum362]

There just hungry buddy. Dont over think it.

[Petyr]

There just hungry buddy. Dont over think it.

I thought that at first, but it looks like the tips are burned from overfeeding.  Therefore I am thinking root aphids or a lockout of some sort.

[vandowls]

Yeah, two weeks ago I accidentally over fed them with Age Old Grow (this is my first grow).ive been hearing "lockout" a lot, is the a way yo reverse it?

[t-pain]

i saw a plant get locked out in seedling stage.

basically it just got stunted for a week or two then came back to life.

 

just keep watering it , eventually it will sort itself out. i think

[Wild Bill]

But don't overwater, that can make them yellow too.

[pergamum362]

Water them with 1/4 stength nutes next time they need water. See how the leaves are yellowing from the inside out? Also the lowest leaves are almost completely yellow.

[pergamum362]

If you get lockout, to reverse, you flush with the correct ph adjusted water for your medium.

[Chauncy Gardner]

If you get lockout, to reverse, you flush with the correct ph adjusted water for your medium.

 

Yup. The cases of over fertilization that I have seen involve burnt, curled leaves and stunted growth. Flushing is the way to correct it.

 

Flush with "tepid" water - neither warm nor cold - and 1/2 regular dose of nutes. Incorrect soil pH will produce lockout and yellowing leaves. The amount of nutes a plant can handle is somewhat dependent on its age and size. Small plant = small nutes. Big plant = big nutes

 

Oh yeah. I have determined that organic nutes are more "forgiving" than inorganics. You can overdo the organic nutes to a much greater degree than you can inorganics with less bad effects.

 

I recently inadvertently double dosed a plant with Jobes Organic dry fertilizer and watered it in before I realized it. I thought for sure that I had killed it. I flushed the plant and gave it only water for a month. It turned out beautifully.

Edited January 8, 2014 by Chauncy Gardner

[pergamum362]

Also wondering why you cliped all fan leaves off but didnt top it? Not that its bad or anything, just curious.

[trichcycler]

do you use municipal tap water ?