3 different plants, 3 separate problems?

BigBud08

Member
Hello,

I am currently trying out my first indoor tent grow in a 4x4 tent using a couple SF-2000 Spider Farm LEDs, an AC infinity 4" Inline fan w/ carbon filter, and 4 clip fans to circulate the airflow. The tent has been fluctating from 81°-85°; 39%-57% humidity daily through flower. The strains I am running are 2 separate GG4 strains (1 from clone and 1 from seed) and a Purple Zkittlez from seed. I generally water every 2 days with water at a 6.75pH, for feeding I have been using the General Hydro: GO box once a week following their feeding schedule. I thought maybe the soils pH's were off, I ran a soil pH test today using a Rapit soil tester and they appeared to be in the 7.0+ range. I am 21 days into flower and I am noticing they are beginning to stunt in growth and yellow faster than usual, especially the GG4 from clone; it has been developing yellow and purple leaves at a rapid pace and the buds have been stunted. The GG4 from seed appears to be showing some signs of browning from the tips of the leaves, working its way down the leaf. The Purple Zkittlez has started to progressively turn into a lime green color under the light with tips appearing to be nutrient burnt. I am not that good with pinpointing what deficiency is harming a plant and to me it looks like all 3 are suffering from separate flaws; I'm lost right now on what to do to reverse the negative effects on my girls. I am fearing the effects happening on the GG4 from clone is far too gone. I attached a few photos, I'm hoping someone can give me a little insight into what I may have going wrong and what I can do to fix it. Any help would be appreciated.

Thank you!
 

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CannaCountry

Well-Known Member
Purple stems and petioles; unless they are genetically predisposed, they are strong indicators of an Mg shortage.
Your pH of 6.75+ is a bit too high as is your soil pH if it's 7+

I would be sure of my pH in all three plants, and I'd be sure of my pH in terms of what I was feeding. Epsom salt can be added to your feed to supply the Mg they need, but remember it will affect EC/PPM, so be mindful of that if you're running the ragged edge in terms of feed concentration.
 
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