On my second run growing northern lights auto from 00seeds. Medium is DNC water only living soil so all I've done is watered when dry. Was told I didn't need to PH my water so I haven't probably my first mistake. Light is a mars hydro tsw2000 led. In 5 gallon smart pot. Day time temp is 78° night time is 65ish, RH is 45. Long story short all was good until about a week ago I started to see some spots on the older fan leaves they never really spread or anything. But this morning I opened the tent to leaves curling up at the top of the main cola and brown spots have gotten worse and crispy. Here are some pics of the affected leaves I plucked off and the plant. Thanks in advance hoping to get this sorted out she's my biggest plant I've ever grown and I don't wanna lose her.
What is going on here
- Thread starter Bigdave78
- Start date
ProteinPapi420
Well-Known Member
It looks good for a non ph watered plant but ph balance is really important. You can use rainwater as well thats what i am doing just make sure its fresh and not full of bugs
ProteinPapi420
Well-Known Member
can you get some rain water somehow?
Dontjudgeme
Well-Known Member
I tried the non ph thing with my soil because I grow organically just to see what would happen. Sure enough, about 3-4 weeks into flower, started to see the same spots and discoloration. Soon as I ph’d to 6.5-7, it all stopped. Now I seriously doubt your harvest will be affected by not ph’ing, but I didn’t want to continue to not ph to find out. I was already heavily invested and didn’t want to ruin a good thing. Won’t kill you to ph.