Possible Sulfate Toxicity? Need advice and answers please!

GroovyGravy

New Member
Hello, I'm new to growing, and need some help!

Setup:
300W Viparspectra LED(600W led on its way)
Distilled Water pH 6.0-6.5(Not using a digital pH meter)
Temp: 75F-81F
RH:40-50%
Nutrients: RAW Solubles(New to Nutes as well, probably won't be using these again in the future.)
Soil is a local brand: Just Natural, It works great if you ask me. (Don't have a bag on hand to give the nutes)

Problem:
The bottom leaves of all 4 of my plants have started yellowing. These plants are over a month old and this is the first problem I have run into. At first I was thinking a DEF of some kind and started searching and it appears it could be a Nitrogen def, Mag def, maybe a phosphorus def, or maybe a Sulfate toxicity. I'm not sure. But here are some pictures below. Keep in mind the nutrients I'm using I added 1/32 of each to a gallon of pH water and I did feed them with it, but they only got a small amount. Some of the leaves turned brown as well and basically just died so maybe I overfeed? This all happened 2-3 days after I feed them all, that is why I'm thinking it could be that the nutes were too much. I'm not sure and need help! Thanks for the replies.




P.S. The leaves you see in the soil dried up are just from me topping not from whatever is happening now.
 

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Replies are appreciated :)

Update: The yellow leaves from this morning's images have now turned brown and died. Should I flush? Need advice ASAP!
 
It’s nothing ... those first leaves get used up fast ... matter of fact you can pinch and clean that little shit out.
 
It’s nothing ... those first leaves get used up fast ... matter of fact you can pinch and clean that little shit out.
I knew it was normal for the cotyledon leaves to get used up and died off but wasn't sure about the normal leaves. But I'll take your guys info and see what happens! Thanks.
 
2¢ ....

Get a ph meter .
Never guess on water or nute mixes.
Vipar leds NEED both switches on .... always
Led grows like slightly lighter feeds ( depending on strain )
Overwatering is a common mistake with LED GROWS since light doesn’t allow faster transpire with plants ( space it out ) .

Rotate plants once in awhile since penetration is not the vipars strong suit.
15”-18” hang height.




Pics of whole plant.
 
2¢ ....

Get a ph meter .
Never guess on water or nute mixes.
Vipar leds NEED both switches on .... always
Led grows like slightly lighter feeds ( depending on strain )
Overwatering is a common mistake with LED GROWS since light doesn’t allow faster transpire with plants ( space it out ) .

Rotate plants once in awhile since penetration is not the vipars strong suit.
15”-18” hang height.




Pics of whole plant.
I use a liquid pH solution, my light only has 1 switch its full spec, only feed once, and usually wait for 1-1.5inches of topsoil to dry before watering, light height is 18" from tallest plant, roughly 20-24" from rest. here are some more pics


20180905_211922.jpg20180905_211922.jpg 20180905_211914.jpg 20180905_211905.jpg 20180905_211820.jpg 20180905_211813.jpg 20180905_211801.jpg 20180905_211752.jpg 20180905_211710.jpg 20180905_212356.jpg
 
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