toxicity or defficiency???

[jagenz]

Hi, sorry for the bad cell phone pic. I tried to get a picture of the whole garden for you guys but as you can see the light is causing a shutter effect.
Can anyone please tell me if this is a overfert or deficiency? I have 8 KC 36 plants under 860 w of hps. Good soil mix. I use DNF nutes with DNF Gold and a b1 from advanced nutrients. The problem is in the older leaves and is making its way up the plant. Once again sorry about the quality. The leaves are actually turning this neon like green colour and are burning in spots it looks like.

 

[jagenz]

oh by the way, ph is at about 7
thanks guys!

 

[bartender187]

need more info, water with some netural water and test the runoff. temps? how old are the plants? current nute regimen? medium used?

 

[jagenz]

temperature is at 19 C, plants are 5 weeks old and about 1.5 feet tall... very compact. Feeding once a week and half strength because they are in a mix of peat moss, verm, perlite, compost, and dolomite lime.

 

[bartender187]

from your info i couldnt give you a reliable answer... I could tell what I would do tho. I would flush, test the runoff and go from there. If its way out of whack I would continue to flush till the runoff's PH is about equal to the input PH. I have no experience with the nutes you mentioned.. i doubt its being underfed because of the compost/ nutes you listed. maybe some of the more intelligent gurus will stop by and give there input. gl bro.

 

[Blackvelvet]

Seems like magnesium deficiency. not uncommon. Drench soil with 1 teaspoon epsom salts per gallon of water. :wink:

 

[topherfrog]

looks sick. not hungry

 

[jagenz]

ok thats what i was thinking... mag. I'll give that a go.. thanks for the replies!!!