Please help identify deficiency mephisto sour stomper day 40 remo nutrients
- Thread starter Dvb403
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Northern Grower
OGwanKushObie
What type of light do you use? Also, how close is it to the plants?
there is a 240w led above canopy 10 inches and a 400w hps on a angle 12 inches from canopy
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>> Dvb-- we need more info please....which soil is this? How exactly did you test the in-pot pH? Is you pH meter recently calibrated? I ask because there's something anomalous about those pH readings and the very high ppm's,... I think you have a toxicity issue starting, but I find it odd that even with those high ppm's, you have no tip burn,... Dosage is that low less than 1tsp in more than 1gal, and you're getting that high ppm? What's the water source, and it's pH and ppm? ....none of this is adding up,....
Symptoms are weird, no good fit for this,... closest thing I've seen to this is Na toxicity... are you using baking soda, or have treated soft water?
.... lights need to go up, that's too close... which light company, and is the HPS cooled or bare-assed bulb? Even so, these symptoms are not light related I don't believe,... that spotty yellowing is not bleaching for sure,... what's the T and RH% in there?
>> Dvb-- we need more info please....which soil is this? How exactly did you test the in-pot pH? Is you pH meter recently calibrated? I ask because there's something anomalous about those pH readings and the very high ppm's,... I think you have a toxicity issue starting, but I find it odd that even with those high ppm's, you have no tip burn,... Dosage is that low less than 1tsp in more than 1gal, and you're getting that high ppm? What's the water source, and it's pH and ppm? ....none of this is adding up,....
Symptoms are weird, no good fit for this,... closest thing I've seen to this is Na toxicity... are you using baking soda, or have treated soft water?
.... lights need to go up, that's too close... which light company, and is the HPS cooled or bare-assed bulb? Even so, these symptoms are not light related I don't believe,... that spotty yellowing is not bleaching for sure,... what's the T and RH% in there?
the soil is pro mix hp plants are 39 days old im also using cx regeneroot 5ml/5L as well i did a soil test phosphorus is low so gonna up my nutes to 8ml/5L.
im using a blulab ph pen calibrated montlhy and cleaned when needed ppm meter is a cheapy from amazon my local tap water is ph 8.1/ppm272-320
pH seems kind of high for soil, but idk bc I am a noooob. But I would say to raise the lights to ~16 in above canopy and continue your feeding schedule as normal. Wait a couple of days to see if it fixed the problem on NEW GROWTH and make sure you are also adjusting the lights daily as your plants continue to stretch.
Again though I am a basic newbie so idk how much my advice is worth...
Again though I am a basic newbie so idk how much my advice is worth...
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... that water is very hard, loaded with mineral CaCO3, which cumulatively is going to have negative affects...
... OK, am I reading that ppm right, 2060? if so, that's part of the problem right there, not sure how you got such a nute salt build-up in there, but that's lock-out level high... Are you feeding each time you water? ... again I'm floored there are no other nute burn symptoms, that plant should be much worse off...
maybe she's a particularly tough pheno' in this regard! Either way, even in a soilless medium like Promix feed ppm is too high, so get that down to about 600-700ppm on nutes alone,... consider getting a different water source with low ppm's in it; RO, Di, or even those self fill machines will have low ppm water...
I'd give that pot a flush to purge the excess nute load, usually about 2-3x pot volume of water, pH adjusted if needed,... if very low ppm, don't bother with pH adjusting, doesn't need it.... test the run-off for ppm and pH after the first gallon goes through, and every half gal after that to see how things progress... stop when it's around 700ppm
... OK, am I reading that ppm right, 2060? if so, that's part of the problem right there, not sure how you got such a nute salt build-up in there, but that's lock-out level high... Are you feeding each time you water? ... again I'm floored there are no other nute burn symptoms, that plant should be much worse off...
maybe she's a particularly tough pheno' in this regard! Either way, even in a soilless medium like Promix feed ppm is too high, so get that down to about 600-700ppm on nutes alone,... consider getting a different water source with low ppm's in it; RO, Di, or even those self fill machines will have low ppm water...I'd give that pot a flush to purge the excess nute load, usually about 2-3x pot volume of water, pH adjusted if needed,... if very low ppm, don't bother with pH adjusting, doesn't need it.... test the run-off for ppm and pH after the first gallon goes through, and every half gal after that to see how things progress... stop when it's around 700ppm
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