Leaf Issues...

[TheHobbyFarmer]

Hello all. I’m trying to understand what may be happening here. Week 5 of veg. FFOC soil. Temps and humidity have been ideal as well as air circulation. Plant has been thriving and signs of potential issues arose two days ago with the two largest fan leaves showing this issue, located mid plant. They are the first and oldest big fan leaves if that means anything. Strain is Sour Diesel and we are indoors. First soil grow and I think I made the mistake of not being hands off enough and fed nutes last feeding a few days back. Fox Farm Grow Big per instructions. PH is good. I’ve only done hydro in the past so I’m not familiar with this look at all. Regimen is 18/6 at the moment with lighting comprised of T5s and natural light through a window during the day. Any ideas or advice are appreciated. Thanks in advance.

 

[alltatup]

Hi Farmer, If it's only on the oldest leaves, it may be the beginning of nutrient lockout; I'd give them a flush. I'm a hydro grower, so I may not have a clue as to what I'm talking about, but I did look up brown stains on leaves: https://www.growweedeasy.com/overwatered-roots-heat-small-container

 

[oldjarhead100]

Good Morning Farmer , If you flush your soil I think you will loose nutrients from it , also I see the beginnings of white powdery mildew maybe looks at the white splotches and see if the get bigger, the brown spots I have seen them on some plants and not on there sisters right next to them so IDK unless it gets worse I wouldn't worry about it