What's happening to my plant? Weird spots

Killhunter

Killhunter

Member
420dian said:
Does it look like this??
Any one know what that is??
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Rust mold definitely looks like that. I'd definitely check my run off for ph issues first though. Second, what size pot is it in? Is it potentially super rootbound? I've seen out of this world deficiencies with root bound plants. Another option could be a micro nutrient deficiency..do you use micro nutes? Rock dust, etc? Lastly if it is rust mold I've seen buddies get it and it doesnt seem to effect the cannabis plant too much except maybe a minor loss in yield. (Dont quote me on that but yeah) I'm thinking it's not calcium def unless its early stage or something but calcium defs that I've seen the leaves get thin and papery, and leaves yellow and die. Yours like thick and strong. Just my 2 cents
 
Killhunter

Killhunter

Member
Edit: I was just looking at other peoples calc deficiencies in the early stages and it def looks similar to your problem. Just know though that it could be multiple faucets causing it though if thats the case. Again 1 being rootbound can lock out nutrients, ph imbalance, or excess/too little of other nutrients can lock it out too
 
Killhunter

Killhunter

Member
Wow that is pretty low even for coco. Is that your medium? And your ph reading should be paired to either synthetic nutrients (5.8 ideal imo) or organic nutrients (6.5 ideal imo)
 
redeyedfrog

redeyedfrog

Well-Known Member
420dian said:
I use distilled water ph is low i was keeping it at 5.5 but i find out it should be ph 6.0 to 6.7 ???
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coco for some reason is more forgiving on ph but I'd still keep it above 6 if I were you thats definitely a classic calcium deficiency and the reason you have a calcium deficiency is distilled water, most municipal water has calcium in it, distilled water has none zero nada. add calcium whether it be dolomite lime, cal mag or a calcium supplement and the problem will go away.
good luck
 
redeyedfrog

redeyedfrog

Well-Known Member
better yet stop using distilled water if you want no chlorine let it sit in a bucket overnight or air stone for an hour. distilled water has no trace elements no minerals nothing, you are setting yourself up for issues, dont listen to some of these gurus running round just simply grow a plant and keep it real real simple is my 2 cents, itll increase your chance of success ten-fold.
 
Opie1971

Opie1971

Well-Known Member
Not sure if your guru comment was for me or not froggy. I didn't tell him to do anything. I just asked a question.
I use tap water. AFTER it has set out for 2 days to let the chlorine evaporate.
 
Killhunter

Killhunter

Member
Lol if you're running synthetics DONT run dolomite lime. You won't have the microbiome to break it down to a usable form for your plant. But if you're running organics, yes it works great but cal mag products work better, unless were talking about soil.
 
Killhunter

Killhunter

Member
And I cant recommend to someone to use their tap water unless they know what's in it or have tried it before. It could have a high total alkalinity, I've seen it happen before. Or you have well water and you think you have 300ppm of calcium but really its 300ppm of iron.:wall:
 
Killhunter

Killhunter

Member
You dont want to use distilled water either bro, it doesnt give accurate ph readings either. Plus its negatively charged right? If you're running to the store, run to wal mart and get the 5 gallon jug of reverse osmosis. It's cheaper too. After you buy the jug first, it's like 30 cents a gallon after that. In the growing world, nothing is more superior than reverse osmosis or rain water
 
oldbeancounter

oldbeancounter

Well-Known Member
Primal420 said:
I have some rusty spots on my lower fan leaves and some are starting to become open holes? Other than that the leaves are in great shape. No curling or drooping. I've looked through several threads and I can't find a thing. Septoria, Nitrogen toxicity, or nute burn maybe? Idk.. Please help lol

Indoor FF Ocean Forest soil grow under LEDs with plenty of ventilation/fans. Watered with Fox Farm Grow Big and Big Bloom at 1/4 strength. Plants are 1 month old and all 3 have the same issue. I don't see any mites or anything either. Hard to see, but on the left of the leaf, the rust spot has opened into a small hole
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No more nutes!
Get ph'd distilled water at 6.4 and add air you can to water, cool and when that plant dries out take it to the tub if you can and flush all that crap outta the area where you added these flower power dry stuff. Leave em there to drain, do it again
might make em look like hell but I figure you added to much

FFOF is very strong on its own it will burn young plants and stunt them, you can't be assured consistent PPM in something like that.
It is good stuff but needs no additive unless you know what your doing other than very clean water with no chlorine or your plants will struggle, enough in time they will die if it is bad like water where i live.
 
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