Help, pics included

[emeraldtri]

Ok, so these girls have been vegging about a month, and have been doing great. Today I find what I think is nutrient burn. I'm using house and garden nutes, and I did up the dose a tad, this last time, but i'm still under what they call "aggressive". My nute tank is reading about 680 ppm... Should I dilute this??? Please help ASAP! Thanks

 

[emeraldtri]

Also, I wanted to include the pH of the water is 6.2. My water has a low pH so I had to adjust it up to 6.2.. Also this is in soil.... Need more pictures?

Thanks..

 

[Dr Dog]

i would like another pic if possible although it does not really look like nute burn. The orange HPS glare is really taking away from the problem.

It almost looks like a lockout issue, and I think this is kind of proven as I see no tip burns

 

[emeraldtri]

more pictures

more pictures

Here's a few more pictures. The yellowing seems to be most prevalent near the light. I'm thinking it may be light burn. I am using RO water, and my pH is about 4.0 before adjustment. I have went ahead and flushed these girls as a pre-caution, but wondering if I should dilute my nute tank, if it really is nute burn? Could it be light burn? The room stays about 82 degrees, and they were close to the light. I have since moved the light up higher; i don't feel much disconfort on my hand when testing how hot the light is....

Thanks for your responses...

 

[PuReKnOwLeDgE]

That is def some burn...Have you used any sprays, neem oil? You need to get your ph between 6.3 and 6.8, 6.5 is idea. At 6.2 your ladies are not getting a full diet. House and garden nutes, never heard of them. Is there a chance they are like a miracle grow? Chemical ferts leave salts behind, which can build overtime and burn her feet. Backoff on the nutes a bit, and make sure you are achieving 30% runoff when watering to keep her feet clean. I would giver her a nice sized drink to get some salts and extra nutes out of there.

 

[emeraldtri]

Thanks for the reply. I haven't used any spray or foliar feeding of any sort. House and Garden are some of the most expensive and highest quality nutes on the market. I will raise my pH a bit, but house and garden says to adjust to between 5.8-6.2, so that's what I've been doing. I'll Dilute the nute tank just in case.

Anyone else think it might be light burn?

 

[PuReKnOwLeDgE]

Light burn has a bleach white look, only way I see that burn bing induced by light is by having foilar spray on leaves and then exposed to intense light before drying. Check your mediums PH her feet are prolly hot.