Yellow tops!!! Help!!!!

ShabbaDanks

ShabbaDanks

Active Member
Ok so here's the details...growing in coco, ro water, temp is 85, co2 burner ppms 1200, humidity is 55, nutes is gh flora 3 part, using calmag, feeding schedule is... feed feed flush... not doing the lift test watering daily.... just switched to 12, 12... it started with a couple tops... now they all are turning yellow
 

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TimeToBurn

TimeToBurn

Well-Known Member
lack of nutes. When you switched to 12/12 the uptake on nutes increased and yellowed out your tops. Happened to me on my 2nd grow. I use Jacks nutes which is an all-in-one so can't tell you what the deficiency is, I just had to increase ppms around 200-250.
 
Punk

Punk

Well-Known Member
TimeToBurn said:
lack of nutes. When you switched to 12/12 the uptake on nutes increased and yellowed out your tops. Happened to me on my 2nd grow. I use Jacks nutes which is an all-in-one so can't tell you what the deficiency is, I just had to increase ppms around 200-250.
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I know what you're talking about, it's not that. The way it's yellowing, with sickly green veins, something is off.

Shabba, Your RO water is likely to blame. Among other things, its probably too alkali. I know people talk it up, but I've had nothing but problems with it. Just use tap water and adjust ph before watering. I know someone will chime in and say they've never had trouble with it, but not all water is the same.

Water use dips a little bit right when you switch to 12/12, you could be experiencing over watering, too.
 
ShabbaDanks

ShabbaDanks

Active Member
Punk said:
I know what you're talking about, it's not that. The way it's yellowing, with sickly green veins, something is off.

Shabba, Your RO water is likely to blame. Among other things, its probably too alkali. I know people talk it up, but I've had nothing but problems with it. Just use tap water and adjust ph before watering. I know someone will chime in and say they've never had trouble with it, but not all water is the same.

Water use dips a little bit right when you switch to 12/12, you could be experiencing over watering, too.
Click to expand...
 
ShabbaDanks

ShabbaDanks

Active Member
Thanks for the info... my tap water sucks... like 400+ ppm sucks... idk what the f is in there so I brought the filter... I never had this problem... first time using TO water so you may be 100% correct... I tried a mix of the two... put the water at 100 ppms before nutes were added. Now I'm at around 850 ppms in the transition phase
 
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