Rust Fungus or Ph / nutrient issue?? Please help.

[NovaPilot]

Hello i'm NovaPilot, this is my first post.
I've been having an issue with what looks like rust fungus. It started during week 1 of veg and i've been mostly removing the affected leaves. I just flipped into flower today and the problem is still with me. So far I have tried spraying with 86'd mite and mold but that hasn't done much. I have showed photos to the local shop owners and no one seems to know what it is. The tech guy at Current Culture thinks it's a ph issue but I have since stabilized the ph. I also have a seperate room with plants in week 2 of veg and it's started on one of the plants in there as well. My room is clean with fresh paint and a brand new tent. Any suggestions would be greatly appreciated. I am running a Current Culture 8xl system with Cultured Solutions nutrients. R.O. water, chiller temp 67 degrees. currently in week 1 of flower and running 1200ppm of co2, day temp 80, night temp 70. Day humidity 60% night 45%. 2 Mammoth 800w LED's.
Thanks!!!

 

[TripsRabbit]

Looks like calcium defiency. How much calmag u use?

 

[NovaPilot]

i'm following cultured solutions recommendations for week 1 bloom. CocoCal 1.5 - 3 ml per gallon. I used 2ml / gal. at 60g = 120ml

 

[Homesteader]

Calcium by the looks of it. When the plant needs calcium it tends to take it from the larger older fan leaves first. Those leaves wont recover but you can stop it from taking more by correcting it. Plants need calcium in very large amounts (Something like 10% of the plants mass)

 

[TripsRabbit]

i'm following cultured solutions recommendations for week 1 bloom. CocoCal 1.5 - 3 ml per gallon. I used 2ml / gal. at 60g = 120ml

I use 5ml of calmag per gallon from the start and still supplement the top of my coco with garden gypsum for more ca.

 

[NovaPilot]

Thanks for the advice guys! I added CocoCal after I read Trips first post and they are looking better already.. My ph is finally in check as well. Ill post some follow up photos. Thanks again.

 

[Flexnerb]

Hello i'm NovaPilot, this is my first post.
I've been having an issue with what looks like rust fungus. It started during week 1 of veg and i've been mostly removing the affected leaves. I just flipped into flower today and the problem is still with me. So far I have tried spraying with 86'd mite and mold but that hasn't done much. I have showed photos to the local shop owners and no one seems to know what it is. The tech guy at Current Culture thinks it's a ph issue but I have since stabilized the ph. I also have a seperate room with plants in week 2 of veg and it's started on one of the plants in there as well. My room is clean with fresh paint and a brand new tent. Any suggestions would be greatly appreciated. I am running a Current Culture 8xl system with Cultured Solutions nutrients. R.O. water, chiller temp 67 degrees. currently in week 1 of flower and running 1200ppm of co2, day temp 80, night temp 70. Day humidity 60% night 45%. 2 Mammoth 800w LED's.
Thanks!!!View attachment 1061593View attachment 1061594View attachment 1061595View attachment 1061594View attachment 1061596View attachment 1061600

How much K is in your nutrient solution?

Excess K can antagonize mg.

 

[NovaPilot]

12.3% I think? i'm not positive on how to determine how much is in my nutes. I just added up the numbers on everything i'm using.