What's going on here?

[Holdemgodmode]

Day 25 or so.

Fox farm soil
3 autocobb 55's
Flora trio nutes (just got first dose 1/8th sttength about 3 days ago)
Water always ph to 6.5
Temps hover between 77 and 82

What is this discoloration?

 

[Mr Green Fingers]

Are you adding calmag?
How close are the lights?

 

[Holdemgodmode]

The lightd are about 18 inches above. And no, have not been using a cal mag suppliment yet.

 

[Mr Green Fingers]

In my opinion the brown spots are a calcium deficiency so I would start adding calmag.
Also lights are a little close in Veg so I would move those up to 24 inches personally as I think that's what's causing the leaf edges to turn in.

 

[Arthur]

Which soil? Their quality control is not what it used to be.
That said, OF was ok for photos, too hot for autos... the HF was a better choice.

I stopped using them a year ago. Low soil ph, and would continue to drift.

Spotting looks mg to me, under LED cannabis becomes even more of a voracious calcium /magnesium whore than normal.

I run DIY COBS, 50w ea, veg height 24 to 36 inches, in flower I'll drop down to 18ish and start looking for signs of burn.

Don't panic over the even if its OF... did it on my first auto run... hell was what I'd always used. It'll come thru, just stay on top of the soil pH.
A little blazed so I'll organize my ramblings...
1 raise the lights some
2 start feeding cal/mg,
3 stay on top of your soil pH...
4 look for a different soil, and or medium.

This should be 1 and 5... relax and smoke.

 

[Holdemgodmode]

Im using happy frog

 

[GoAuto6]

I'd have to agree with the above statements..gat a cal-mag supplement and a good pH soil probe so you know exactly what's going on in the pot.