Can't Figure It Out

So...i provided pics of course, but I have been trying and testing things since i first saw the problem in my previous grows. Every single plant has the same symptom regardless of strain. I narrowed it down to pot size too small (I use 1 gallon for the auto's that i grow), PH problem, calmag deficiency, overfertilizing or underfertilizing (i think over) or many of the latter...

-Ocean Forest Soil
- Under 6 self made full spectrum COB 100w LED's. PLENTY of light it would seem for 3-6 plants.
- Pot size 1-1.5 gallon
- Feeds are black strap molasses and tiger bloom (1/4-1/2 teaspoon around 2-3 weeks into flower in 40oz cup).
- Water/feed is 6.5ph.
- Humidity is house humidity which is 30-40% where i live

(UP) is caramelicious auto

Supposed to be caramel, but its not, mystery auto
Was supposed to be northern light auto, its a mystery non auto lol

fox farm can be troublesome for many posters I've seen here. sorry this happened. how old are they?

chemphlegm said:

fox farm can be troublesome for many posters I've seen here. sorry this happened. how old are they?

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Oh really?? Ive hear ocean forest is good stuff but I also heard as they said "its hot"...so i wonder if the little dose of tiger bloom is burning them? not sure yet

EDIT: oh the auto's are around 40-50 days i believe. and the non auto mystery in back with the long cola issss....around 70-80 i would assume

well, the first thing is don't feed your plant molasses. its entirely pointless unless you're running a live culture in your soil, and there are better things to feed them than molasses if you are. plants cannot absorb anything in molasses without it being broken down first, the same as any organic material. old hippy myth. i would go to at least 3 gallon pots, bigger roots = bigger fruits.also, in a 1 gallon pot, any problem with your roots is going to devastate your plant, with a three you have a little more of a safety margin.
that really looks like both cal and mag deficiency, i'd start adding a couple of ml of cal-mag to my feed, see if that slows that down any

thanks for the reply and good info. Ill upgrade to as big as i can go, my flower space is limited atm. I just fed with cal/mag recently...so hopefully i see improvements. I think i only fed 1/2 teaspoon in 40oz cup....so not much

Unless the humidity is high/very high I doubt its rust. If it is rust mold you can rub your hand on it and you will have rust on your fingers. If those things happen then it is rust mold.

Otherwise it is a nute/PH/transplant issue. I almost always get some of this when I transplant using FFOF soil. FFOF can be HOT and I always flush a couple times after transplant to limit this discoloration. Also runoff PH is usually low initially after transplant for me. Hot soil... A few roots get burned and these spots pop up.

Verify PH, flush and 1/2 strength nutes.

If its rust mold follow the advice of others. I have never had it with RH of 40% to 60% with good circulation in my grow.


I found this looking around the net, hope it helps you out....

ive been looking at pics of nute burn and it doesnt seem to be that...i mean its possible... it looks like manganese deficiency...tips are either yellow or brown, orange/brown spots, dying leaves, crispy and crack if bent...every single plant ive grown lately (6 plants) have had this same problem...i wonder if its the ocean forest soil?

weeks into flower you aren't going to have much punch left in a gallon of soil. It's not the ffof.

Bugs? Light burn?

bugs def not, light burn i dont think so...light burn doesnt cause the spotting to my knowledge. I think ultimately its the pot size....1 gallon is most likely not enough at all...i just fed the plants...so ill make a better judgement after a few days.

pa1nt13aller said:

ive been looking at pics of nute burn and it doesnt seem to be that...i mean its possible... it looks like manganese deficiency...tips are either yellow or brown, orange/brown spots, dying leaves, crispy and crack if bent...every single plant ive grown lately (6 plants) have had this same problem...i wonder if its the ocean forest soil?

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I've had this issue with every plant I've grown in Kind Soil. Exactly the same. I'm using up the last of it this grow and adding calmag right from the beginning didnt help. I was blaming my water as it always happens when flowering starts. My latest went from extremely healthy to sick in a week of flowering.

I'm not having the issue with coco so I doubt it's the water.

I'm done with soil once this plant finishes.

Creature1969 said:

I've had this issue with every plant I've grown in Kind Soil. Exactly the same. I'm using up the last of it this grow and adding calmag right from the beginning didnt help. I was blaming my water as it always happens when flowering starts. My latest went from extremely healthy to sick in a week of flowering.

I'm not having the issue with coco so I doubt it's the water.

I'm done with soil once this plant finishes.

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what was/is your pot size? feed schedule?

pa1nt13aller said:

what was/is your pot size? feed schedule?

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5 gallon soft pots, water only grow the first round. This one is in 4.5g bucket, water w/3ml per gallon calmag.

oh wow i didnt see your pic at first! thats EXACTLY the same problem! maybe we can work together on this... are you using ocean forest soil?

It's "Kind Soil". It's a water only organic soil. I tried everything on the last grow with 3 plants. Something different with each plant based on conflicting advice from the web. I tried changing PH, epsom sprays, let one dry out more between waterings, watered to more runoff, started adding calmag, tried adding flower nutes to one (not a good idea) and I'm sure there's more in my notes. lol. Nothing even slowed the progression. The leaves I left on them (most of them) eventually turned black if they were in direct light.

Due to the issues with the last grow, I mixed it 50/50 with a super light seedling soil for this go and adding calmag from sprout and still have the same exact issue happening at the same point in the grow.

It's not happening in my coco hempy buckets.

what the heck....seems like you've covered all possible problems to no result....I havent heard much about coco at all...ill have to look into that.

What else could it be?... I just fed with tiger bloom...probably going to make it worse but im going to rule out it if thats the result, overfeeding that is. Ill rule out the small size pot since you use huge ones to same result...PH feed and runoff is always 6-6.8....so idk...hmmm

I dunno. About the only thing I can do is blame my city water over time. But I'm not having an issue with coco. Unless the approx 180ppm in my water was messing with the organic soil and doesn't matter so much in coco with canna nutes. <shrug>

I'm to the point I'm just rolling with it until this plant finishes.

I spent countless hours searching, asking for help and reading every thread even remotely close to the issue. I found quite a few with this exact same issue that never got resolved during that grow.

Most common question from randoms: "What did you feed it?"
My response: "Water that naturally hits a PH of 7 after 24 hours, nothing else."
Answer; "Ok, but did you add to the water?"
Me:

have you tried some sort of manganese supplement?

plants in nature do this when they start to flower, its called senescence. they have heightened needs when they start to produce flowers, and they'll cannibalize themselves to feed the growing flowers. you need to add a little more P and K, and a little cal-mag each watering. but in reality, its a cosmetic issue, i don't think its hurting your yield or quality. if you have been adding cal-mag, or anything else with a lot of iron in it, or if your tap water has a lot of iron in it, it may be locking out manganese, you may want to try ro water for a while, and if you're using cal-mag+, try to find something that doesn't have iron in it to supplement with

great info roger. I just fed with tiger bloom and calmag so we'll see what that does...although tiger bloom is low on manganese so ill look into aomething that provides that. For water im using tap water through a PUR kitchen faucet filter. But if the leaves are drying out and falling off surely that will effect yield, since the plant would seem to be eating through a straw because it has less leaves to absorb light correct?

Roger A. Shrubber said:

plants in nature do this when they start to flower, its called senescence. they have heightened needs when they start to produce flowers, and they'll cannibalize themselves to feed the growing flowers. you need to add a little more P and K, and a little cal-mag each watering. but in reality, its a cosmetic issue, i don't think its hurting your yield or quality. if you have been adding cal-mag, or anything else with a lot of iron in it, or if your tap water has a lot of iron in it, it may be locking out manganese, you may want to try ro water for a while, and if you're using cal-mag+, try to find something that doesn't have iron in it to supplement with

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Right on, best answer yet.