Help! Newb led grow.

I'm 29 days into flowering and one of my plants is dying! I think. The leafs are turning yellow and curling up and eventully dying. Started at the bottom but now the top leafs have it as well! I keep PH at 6.2-6.8 and feed it about every 4-5 days (everyother watering) at about 1/3 strength of what's called for. (fox farm) please help!

Thanks for the help people. Today my plant looks worse and I doubt it's gonna make it. And dont go telling me to read the forums because I have the past two days and there's nothing useful for my situation.

you extracting and have fresh air coming in ?

1/3 strength nutes huh ? have you fed extra cal mag ? have you fed extra N to stop an N def ? could be a P or a K deff too seen as your in flower and using 1/3 strength nutes

Soil grow I take it ? 6.8 is more where you want coco soil is normally a bit higher

led grows with lots of red normally like a bit more cal mag or use liquid seaweed

It gets fresh air everyday and no i dont use cal mag. I was gonna flush it today but should I just give it a feeding since its a def? I thought it was burn or something. Should I cut the leafs off?

I just flushed it with some nuts and the PH came out at 5.5 What can i do to fix This?

Your plant has no nutrients. Its getting nothing. 1/3 sttength in flower..... no chance. I followed the fox farm feeding schedule when i first started had all kinds of problems. Now i just use it as a guide. Im in week 3 if flower and when it says 3tsp i use 4-4.5 because thats what the plants need. Once you learn to recognize deficiencies and react itll be easy.

Your ph is low so just use plain water at ph7 when you feed and water.

silicone ph-up is good to raise ph levels