What is causing these spots??

PH in all buckets is 6.0
TDS is 350ish
I added Epsom Salt thinking MG Def but now Im thinking MN Def?

fungus attack buddy, I had the same problem, PH 6, humidity 45% temp 80 degrees 18 hour lighting , fluoros, 4 inches off plants, nutrients were mild. Diagnosed by removing and killing plant , out of 3 plants that was the only one that got sick, indica strain, i have an afgan strain that was next to it, same age 3 weeks old, didnt get affected.

some strains are fungie resistant, some are not....

also, keep an eye on your other plants, chances are they are infected and ....... sad to say, u might have to kill the whole crop, as there is no cure...

Smitty750, I have the same problem as you and I also tried with large amounts of Epsom salt - to no avail! How long have you tried epsom salt? I've tried foilar feeding and adding epsom salt to the regular water for 4 days now. Are your stems purple, too? How can it be fungus if the spots occur everywhere? Shouldn't fungus be more localized?

Check my thread!

https://www.rollitup.org/marijuana-plant-problems/52081-brown-spots-magnesium-deficiency-fungus.html

Merciless58 said:

also, keep an eye on your other plants, chances are they are infected and ....... sad to say, u might have to kill the whole crop, as there is no cure...

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fuck that... this does not look like a fungus!!! to me it looks like a ph fluxuation problem. i think you should flush your entire system.. and see what that does for you!

Jakebakingcake said:

fuck that... this does not look like a fungus!!! to me it looks like a ph fluxuation problem. i think you should flush your entire system.. and see what that does for you!

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Ha HA I agree Jake no way is it a Fungus Def here ya on the PH fluc my PH goes between 5.8-6.3 is that enough of a fluctuation to make a difference? Also I just noticed that my nodes stems are turning purple on the tops, kinda like Phoshporous Def??? But the red stems could be genetic

to be honest with you smitty i am going through the same problem you are right now. my ph fluxuated a little bit more than yours but the yellow spots on the leafs are a dead give away.. it could also be a potasium defficency.. i havent figured out which one yet... i am going to flush my plants in the bath tub first thing tomarow morning... and see what happenes hopefully the problem will subside!!

Jakebakingcake, with PH fluxuation do you mean big PH changes over time or do you mean the PH changes from "sections" of the soil? Do your plants look like my plants? I've always thought it was some kind of PH problem!

no it was a small small change ... i use R/O water to water my plants.. when i started adding nutes to the water it actually lowered my ph to about 5.0..needless to say i was unaware of that ph change and proceeded to water my plants with it ... thats when i started noticing the little dots all over the leafs and thought to myself "something is fucked up".. hence the upcomming flushing!!

jake you have hydro or soil?

has ur ph been going up and down as what u have is ph spotting

ya it has and I cant get it to stop!!!

im growing in soil.

Kind of looks like he might be splashing nutrients on his plants to me.

My buddy had the same problem with a certain PH tester being off by .5-1.5 at times. It wasn't even a cheap one just defected. I'm just making sure the obvious is not overlooked. Good luck everybody!

I've always run hydro @ 5.6 - 5.8 PH and soil/soiless mix @ 6.8 this is what Jorge Cervantes suggests and so does Ed Rosenthal works for me good growing

Ya my PH pen was off by 1.5 sent it back and got a new one, that sucked

if you get mites mix 1L of water with 1 sliver of sope and 1 small clove of fresh garlic and mist your plant leafs then take your fingers and rub it off gently, I had mites and I did that and its been 1 month and I might be getting them again but I have to spray all the plants in the house to make sure that I kill them all off