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Sammy2dope

Active Member
I have 10 plants under a high 600watt led and having some issues here some pics can anyone tell me what's going on and what I'm doing wrong I'm using pro mix organics
 

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Thurston

Well-Known Member
You need to provide more information.
list of things added to nutrient feed.
How often do you feed?
Ph and ec of feed.
Have you captured any runoff for ph and ec measurements?
 

Sammy2dope

Active Member
I'm using general organics bio thrive and bio root and cal mag I have been pH my nutrient solution and I'm feeding 2times then 3rd time just pH water not doing a ec. Did do a run off ph test today and Iwas reading. 5
 

Finn15

New Member
Yo, with a 600W LED, make sure it’s at least 20–24 inches away or you might fry your plants.Pro Mix Organics is great, but after a few weeks, you gotta add nutrients.Check your water pH; Pro Mix likes it around 6.0–6.5 for best results.I had the same issue—light was too close, and pH was screwing up nutrient uptake.Get a cheap pH meter; it’s a game changer.Also, throw in some Cal-Mag, LEDs suck it out of the plants like crazy:weed:.
 

Sammy2dope

Active Member
Yo, with a 600W LED, make sure it’s at least 20–24 inches away or you might fry your plants.Pro Mix Organics is great, but after a few weeks, you gotta add nutrients.Check your water pH; Pro Mix likes it around 6.0–6.5 for best results.I had the same issue—light was too close, and pH was screwing up nutrient uptake.Get a cheap pH meter; it’s a game changer.Also, throw in some Cal-Mag, LEDs suck it out of the plants like crazy:weed:.
I have mine 30 in away and I just bought a ph meter waiting for delivery now but NY water run off is at 5 and I dont understand how it got like that cause I always ph my water and nutrient I put some agricultural lime on the pro mix sk hopefully it will rase my ph
 

Sammy2dope

Active Member
I have mine 30 in away and I just bought a ph meter waiting for delivery now but NY water run off is at 5 and I dont understand how it got like that cause I always ph my water and nutrient I put some agricultural lime on the pro mix sk hopefully it will rase my ph
And I always use calmag
 

bignugs68

Well-Known Member
Looks like deficiency's across the NPK board. N bc the very light green/yellow everywhere - though LED grow lights do accentuate that apperance so its usually not as bad as it looks. Potassium deficiency because of edge burn/browning. And Phosphorus bc the blotchy random browning through some of the leaves. If your pH is really 5, that would reduce the absorption of those nutrients, making pH nute lockout the culprit.

For a flush, IDK. I've heard 3x the water you normally would give, and I've heard 3x the volume of your pots. 9 gallons of water if you have 3gal pots. Always seemed like an awful lot to me. The one time I flushed I just did 3x what i normally watered. 3gal of water, and it did the trick. Be your own judge bongsmilie

Personally i just take my pots to the bathroom, lower my curtain rod to rest on the tub surround walls, tie strings around the handles on the pot(i use fabric pots) and flush away.
 

pegboy

Well-Known Member
I have mine 30 in away and I just bought a ph meter waiting for delivery now but NY water run off is at 5 and I dont understand how it got like that cause I always ph my water and nutrient I put some agricultural lime on the pro mix sk hopefully it will rase my ph
Nutrient/salt build up.
 

bignugs68

Well-Known Member
OP, pro mix Organics is primarily composed of peat moss, which is known to lean acidic. I'd say being a peat moss, and you're feeding twice watering once is what did the trick, especially if you're feeding a recommended dosages. But most people recommend using half or less than half the recommended dose to figure out what the plant wants, and in my experience that works out best.
 
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Sammy2dope

Active Member
Looks like deficiency's across the NPK board. N bc the very light green/yellow everywhere - though LED grow lights do accentuate that apperance so its usually not as bad as it looks. Potassium deficiency because of edge burn/browning. And Phosphorus bc the blotchy random browning through some of the leaves. If your pH is really 5, that would reduce the absorption of those nutrients, making pH nute lockout the culprit.

For a flush, IDK. I've heard 3x the water you normally would give, and I've heard 3x the volume of your pots. 9 gallons of water if you have 3gal pots. Always seemed like an awful lot to me. The one time I flushed I just did 3x what i normally watered. 3gal of water, and it did the trick. Be your own judge bongsmilie

Personally i just take my pots to the bathroom, lower my curtain rod to rest on the tub surround walls, tie strings around the handles on the pot(i use fabric pots) and flush away.
I'll give it a try thanks for the advice
 
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