Yellow Leaves

pntrbl

pntrbl

Member
2 pics attached. One overview and the other is my worst case yellowing. Starting to curl!

The particulars. Sealed Box. Soil. GH Expert Drain to Waste Nute program. Water every 4 days. 2 400 watt lights. CO2 on a timer. Sour Diesel 6 weeks and 3 days into Bloom.

Currently feeding the Aggressive Bloom formula and I have been messin' with the Liquid KoolBloom levels. I fed 'em twice at 6ml's, then twice at 7, then twice at 8 which was about a week ago when the yellowing first started. Ppm around 1150 on a Hanna.

The thing is the front 4 plants are a week behind, they've had 8ml's twice now, and they aren't yellowing at all! I dunno why. :roll:

Any and all suggestions are welcome .....

Bill
 

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pntrbl

pntrbl

Member
max316420 said:
your food isn't the problem, your lacking magnesium
Click to expand...
Thanx for the response and ya got me reading the bottles again. Turns out there's NO magnesium in Liquid KoolBloom. The FloraBloom has a 1.5% magnesium solution tho. I'm gonna back the KoolBloom down and start working the Flora up to get some mag in there. We'll see what happens ........

Thanx again, Bill
 
pntrbl

pntrbl

Member
I think you guys got me on the right track. I did some diggin' in the stickies on mag deficiency and saw something about being to acidic ...? Then I ran across the following chart. Shit. I've been running my pH at 6.0. According to the chart Mag doesn't even get absorbed in soil at 6.0!

Sometimes I wonder that these plants survive at all .....
 
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