Phosphorus or calcium

[No3odiesShad0w]

This getting me so annoyed. Different medium same problem. Ruled out the pH. I got 6.2 going in and 6.2 coming out. I'm thinking....I might be under feeding? There's a crap ton of flowers and they're already stacking on day 15 of the bloom. I gave her a healthy amount of NLS flower power 10 days ago but I think it might be time to make a tea and water her with that.... pretty sure she just needs more food.

Other possibility is calcium but that wouldn't have the red stems issue.

Secondly wtf is the matter with uploading pictures. I've never had a picture I posted under 2.0mb and now all of a sudden every picture is too big over the 2mb limit.... Good luck seeing stuff properly at lower MB.

[No3odiesShad0w]

VPD is at 1.13kPa, CO2 between 900 to 2000ppm DLI is around 46 ish 47ish. I could probably push that more but not if I have deficiency. I think I'm just under feeding for all she's doing in so short .....I never really had all my stuff locked in .... Never had anything grow like this before.

[Rwise]

Raise the PH to 6.5-6.8 with soil in flower.

[OldManGrower]

I do not know what your grow medium is, but if it is soil, 6.2 is too low. I needs to be around 6.5-6.8. The low PH, if in soil is resulting in nutrient up take inhibition especially in calcium and magnesium. Higher PH and Cal-Mag should fix your problem.

[No3odiesShad0w]

Coco with organic amendments....I was thinking about raising the pH to at least 6.3 but everyone I ready about Coco keeps saying 5.5 to 6.2. But I'm not running synthetic nutrients. I'm doing what I would do in soil but in coco. I kept having problems with acidity with the soil going down to like 4.8ph so I figured I try Coco. Everything was going really well until it started blooming. ...... Same problem.

I'm beginning to wonder if the problem is the nature's living soil because that's been the only constant throughout this whole problem finding mission.

[No3odiesShad0w]

Literally following their recipe. Only thing is ice been keeping the pH at like 6.28 -6.22 but I guess next watering I'll do 6.5. I did just notice they keep saying 6.5 on the site even though it's Coco

SOOOOO much conflicting info when it comes to weed. This is why I hate bro science. Just muds up real science

[No3odiesShad0w]

Ckbrew this is the recipe used. I have 4 gallon container so 3 gallon Coco 1 gallon petite 9oz of castings

[No3odiesShad0w]

Then you read stuff like this and I just think well I'm not in Soil and 6.2ph seems to be the middle point for both so I was just sticking with that. But 15 days into bloom clearly it's not it ..... Good thing I have to water daily..... Today I'll water with 6.5ph I gave her a strong tea yesterday. If the pH is the issue. Raising it shouldn't be hard in the Coco since it's been fairly stable unlike the shit Fox farm soil

[StickyNugsAZ]

I think that recipe should be treated as if you are growing in living soil

[No3odiesShad0w]

Yeah I think that's been my mistake. Just overthinking everything. It does say in the NLS website to do 6.5ph. Not sure how I missed that. Just gonna give that a try starting tonight. Would be a shame to have such a nice plant underperform

[Ckbrew]

You didn't say what the percent coco is but from your description it sounds like the majority. Did you pre-buffer the coco? Coco will bind ca and mg. It should be soaked in water with calmag before use. I use 10ml/G and pH adjust as needed. This saturates the coco so it will not bind up ca and mg from the nutrient source. There also may be a pH issue. With the mix you are using idk where it should be.

[No3odiesShad0w]

Yeah I think that's been my mistake. Just overthinking everything. It does say in the NLS website to do 6.5ph. Not sure how I missed that. Just gonna give that a try starting tonight. Would be a shame to have such a nice plant underperform

I'm using the canna coco. 75% with 25% perlite. I ran water through it and had an EC of 0.3 so I used it as is. It's supposed to be pre buffered .....I never used Coco before I was just so fed up with soil over the last 3 years. I heard all the stories about ppl buying bricks of Coco and it's trash so I spent the extra money to get one that's washed and buffered. I've been adding between 3.5 to 5ml/gallon(GH cal-mag) of Cal mag to the water every time I water. I held back for 2 waterings because my leaves were almost purple. Now I think I need to just give it normal strength again.

[Ckbrew]

I did the brick thing the first year, I have better things to do with my time. PITA. The prepared bags of coco are much easier. Imo even the "pre buffered" stuff needs to be conditioned with calmag.

[No3odiesShad0w]

I guess the next run, I'll double buffer it in 150% cal mag (7.5ml/gallon). Just to be safe. This is why I avoided Coco for so long. So much extra work which I don't have the energy or health for.
I watered with 6.5 pH. Seems like it may have stopped getting worse. Need another day or so to be sure

[No3odiesShad0w]

Normally I got paragraphs of shit to say..... Not this time..... I'm BEYOND pissed. 3 weeks into bloom it went from beauty to zombie...... Beyond pissed

[9fingerleafs]

What ec or ppm are you giving the plant? What exactly are you feeding? In soil the bacteria is what's feeding the plant. In coco you have to provide nutrients directly to the roots thru osmosis, there's no bacteria to break down "organic" amendments.

Also I think you are wasting the CO2 because the plant can't use it right now. Only when the system is dialed in and the plant is super healthy with extra nutrients available and tons of light, then the CO2 can be used

[9fingerleafs]

Ohh I see. I don't know why I thought it was coco. Well... that's the complicated thing about soil, you never know exactly what's in there and it's hard to do anything about it once the plant is in the soil. To me it kinda looks underfed but it could be any kind of issue preventing nutrients from being absorbed. I can't give you advice there. I don't know how to fix it. That's why I gave up soil, apart from the fact that they grow twice as fast in coco the control aspect is huge. And about the CO2, as long as your not wasting money is all good, just be sure to have a fan or something to create air movement just so the CO2 doesn't build up in the floor preventing oxygen from reaching the roots.

[No3odiesShad0w]

It is Coco based soil yes. I followed the recommendation and grow guide in their website..... You know I figured use the guide made for the nutrients I'm using not a guide made for something else. The"soil" is Coco, perlite and castings. Then 3.2oz per gallon of the autoflower mix and that's the base soil for all of veg.

[No3odiesShad0w]

It was went wrong when I watered with plain water and the calcium issues started right away. Because the Coco that's supposed to be buffered obviously isn't. But the leaves are so dark green it was hard to tell what the problem was until it was more advanced

[Ckbrew]

Have you checked for bugs? I have had good results with adding a touch or H2O2 to the feed water at the rate of 34% peroxide, 2.5ml/gallon every once in a while. It provides some extra O2 for the roots, and will help suppress fungus gnats if you have them. They tend to show up with excessively watered coco. If you have algae growing on the surface of the coco or on the perlite that is also a sigh of being to wet. I wouldn't be pissed, have a bowl and learn something from the experience.That is how we get better at things.

[Ckbrew]

Going back over the post I see you are keeping pH at 6.5. I use the range 6.5 - 5.5, and try to target 5.8 - 6. Your pH may be a bit high. Now I see the dark green leaves on one bud suggesting N tox. There may be multiple issues happening here. I'm not familiar with your nute brand, I use GH with calmag and pH adjust only.

[No3odiesShad0w]

I was doing 6.2 during veg with explosive results but as it started to flower it stopped being so explosive and all the problems started

[No3odiesShad0w]

That's why I got the cal mag without nitrogen because the feet l compost I'm using is already super hot I don't need the extra nitrogen from the cal mag. That's what was messing me up. And to back off the only nitrogen I could back off of was the cal mag ...... That's when it all went south. I saw the nitrogen was too much I didn't want it to be a problem in flower so I ended up with a calcium and magnesium problem..... If it's not one thing it's another thing