Can someone help me I think this is light burn or heat stress?

[SirStickyBag]

Thought I was dealing with cal mag issues but looks more or light burn and just wanted to make sure root rot won’t be an issue .. light burn ? Her stress?

 

[9fingerleafs]

She looks very sad. I think those random discolorations could be a root problem. Like bad ph

 

[uncledoug]

Those plants look just like mine did, I lowered my Ph to 5.7 give or take point and that stopped it from spreading. The girls are happy now.

 

[Toker1]

Could be. Would need more info. Temps? Lights? Distance from canopy?
Those leaves look awfully droopy. Have you potentially been overwatering her?
maybe bad soil drainage?
how long between waterings? Does she dry out or stay moist inbetween waterings?

 

[SirStickyBag]

9fingerleafs Okay cool Iv been trying to keep the ph near 6 but can get it lower ..@ uncledoug okay I’ll try that . Using coco coir .

 

[SirStickyBag]

Toker1 temps about 75-85 . Light led cree cob 100w full spec and I moved them to 18in off canopy

 

[SirStickyBag]

She dryed out pretty quick after a day In a half / 5 gallon smart pota

 

[Toker1]

She looks to be overwatered. It’s easy to do.
Are you letting the soil dry out inbetween waterings?

 

[Toker1]

Are you watering until you get run off? What is the PH of the water and the run off?
My 5 gallons get watered 2 times per week and fed 1 per week. For a total of 3 waterings every 7 days.

 

[Greenpassion]

I thought ph is optimal between 6 and 7, like 6.5?? That's what I read, and have been keeping it thete...???

 

[SirStickyBag]

I havnt checked ph of run off but I will and Iv been feeding 2 times and week and 1 water .. every 7 days

 

[NA420]

Flush with plain ph'd water immediately. What week are they in? Looks like they ate getting close to being ready from the pics

 

[Toker1]

Sounds like you need to flush. Too much feed and not enough water can cause a lock out due to salt build up.

 

[SirStickyBag]

NA420 yes they are just bout done week 7 and I wanted to fix this problem before I flushed it for harvest

 

[SirStickyBag]

Flush just once? And I have SLF 100 which should help the salt or nut build up

 

[SirStickyBag]

Toker1 thanks brother will get to that tonight