I've grown this pheno twice before and it never got like this. I previously used crappy generic lights and Plagron Cocos AB or Plagron Hydro AB. I've switched to Canna Coco and recently upgraded to 301h EVOs.

I've switched nutrients early during the grow. Even before I've switched lights, there was something going on that seemed like mild magnesium deficiency that appear in the top of the canopy (not necessarily new growth or old growth) with some tip bleaching. I thought it must be the excess light paired with under-watering, because they were growing too close into my old lights and the autopots weren't turned on yet.

New light seems to have made it worse, even though I run it at 70% power, which is less than 500W in a 120x120cm/4x4ft and 30-40cm/12-16in above the canopy.

I don't do any pH adjusting, it naturally comes out to 5.5-5.6. But I've noticed it drifts very little, and rarely goes above 5.7. Could that be the problem? Re-calibrated my meter just to be sure and it was accurate.

Plants are now in Autopots but I've been top watering until recently. I use soft water (40ppm). I don't use extra cal-mag except when I added epsom salt. I use 4ml/l of Coco AB (which comes out to around 2.0 EC) and calculated elemental calcium to be 212mg, and magnesium 68mg, which should be more than enough.

Temperatures and humidity are decent, 26-27C/79-80F and 60-65%. I run airdomes.

Here is Zweet OG X Grandpa Cookies, Purple Sunset X Grandpa Cookies from Ethos, and Humboldt Seed Co Hella Jelly. Day 71 flower.

Assorted malawi clones mid-flower grown in solo cups as I try to cross them with a hybrid variety.

Water Hardness25 ppm

pH Level6.8

TDS: 40 ppm

My water report from my tap. Can I get away with just ph-ing down and off gasing the chlorine in my tap water or should I get a ro system? Going to be running advanced Nutrients Ph Perfect Sensi Coco Bloom 1 Litre 1L A+B Set Hydroponics, canna coco, First time growing in coco usually do organic soil, so take it easy on me lol. Thanks for the advice

Sharing my corner for those of you who also feel peace, calmness, and relaxation in your grow areas. Wishing you all the best. ✌🏾🌿

2 Cream&Cheese 1:1 - Seedsman (starting week 4th flower) 3.9 Autopots

1 LSD-25 auto - 42FastBuds (63 days since sprout) 1gal fabric

Canna Coco + Nutrients 3x3 tent FC3000 EVO - Mars Hydro

Hey everyone,
I’m looking to dip my toes into coco coir for my next run and would love to get some insights from experienced coco growers.

I’m not new to growing I have solid experience in both soil and traditional hydro setups but this will be my first time working with coco. I’m planning on using a top-feed drip system.
I’m currently on the fence between running 100% pure coco versus a 70/30 coco/perlite mix.
My understanding so far is that the 70/30 mix allows for more frequent fertigation events, which usually translates to faster growth rates. On the flip side, 100% coco holds moisture longer and requires less frequent watering.

For those who have run both setups with automated top-feed drips:
Which option gave you better overall results or was easier to dial in?
Is the trade-off in watering frequency worth the extra aeration from perlite, or does pure coco deliver similar growth if fertigation is managed properly?
Aside from staying on top of Cal-Mag (which I know is huge with coco’s cation exchange site), are there any other specific quirks or watch-outs you wish you knew when you made the switch?

Bonus Question on Coco Brands & Cost:
I know Royal Gold has a great reputation, but it runs about $18 a bag locally. Another shop nearby has a brand that is triple-washed and buffered for $12 per 1.5 cu ft bag. Saving $6 a bag is tempting
if a cheaper brand is legitimately triple-washed and buffered, is it worth paying the premium for Royal Gold, or do the budget-friendly options perform just as well in your experience? 

Appreciate any advice, personal experiences, or tips you’re willing to share. Thanks in advance!

Ebb and flow hydroponics with cococoir/perlite medium. 4x8 tent, using Viparspectra KS3000 and SpiderFarmer SE3000 lights, plus ACInfinity exhaust fans with control unit. 2 oscillating fans, also. Scrogging and lollypopping technique.

Ppl been asking how do I get in the room and water the plants.

Move them aside, make a corridor in the middle and get in there with a garden hose, wand, 1/2 hp submersible pump.

Good luck to everyone grinding out there.

I really don’t want to go to 4ish lb trim jail all alone and and am curious if any growers in the PDX area would be willing to rent out their trimmer for an hour or two? I could have them sorted and ready to go

Last time I tucked under the scrog net vs 2 weeks of no tucking and letting them grow up.

Week 3 of flower on the way 🪴

2 Cream & Cheese 1:1 - Seedsman in 3.9 Autopots 1 LSD-25 - FastBuds 1gal fabric pot

Both running Canna Coco & Nutrients

Hi all, recently completed the DIY automatic watering system from Dr. Cocos site (https://www.cocoforcannabis.com/diy-automatic-watering-system/) , and I’m wondering about the air pump in my reservoir.

Does it need to run 24/7 or only for a few minutes prior to fertigation events? He says a stirring pot should be used for a few minutes prior to fertigation, but nothing about the air pump in a smaller reservoir.

This lady is so beautiful! She has a very unique "forest" green color.🪴🌲

1gal Canna Coco & Canna Nutrients

2 different strains this time

Kaya Coir Coco-grown

Hello everyone,

I’ve started using silica, but it seems to have affected my EC and nutrient dosing, and I’ve run into some issues because of it.

My question is: how should I correctly measure and adjust EC when using silica?

I’m using RO water and following Canna’s guidelines, buffering it to around 0.4–0.45 EC with CalMag. However, if I add silica first, the starting EC is already much higher. Should I simply add the CalMag EC on top of the EC from the silica?

For example:

RO water: EC 0.02

RO + 5 ml CalMag: EC 0.4

RO + 1 ml silica: EC 0.3

RO + 1 ml silica + 5 ml CalMag: EC 0.7

So, when using silica, should I simply count its EC towards my target EC, or could this lead to nutrient lockout/burn? Should I stay below the recommended maximum EC? And how do I determine the correct amount of CalMag in that case?

Maybe I’m overcomplicating things, but since my first attempt with silica caused some issues, I wanted to make sure I understand it correctly how to dose and measure.

Greetings

Well, I'm in my second grow and I've been trying to find the correct answer on when do I start using my Canna Coco PK. By the Canna chart it says "When buds stretch and arr ready to get fatter" and a Costumer Service of Canna @ Instagram told me, week 3 for 8-9weeks plants and week 4-5 for 10+week plants.

I really need a visual example to try to have a better idea.

When you all using Canna Coco PK are feeding it? What stage in this pictures looks more like the right time?

Thanks Growmies 🪴

Hey all,
I’m guessing a cal/mag deficiency and possible light stress? Can you steer me in the right direction?

Canna coco/perlite mix 50/50 3 gal pot wicking pots using GH trio, with cal mag ~500 ppm. Plant is 5 weeks old.

Feeding Athena at 1.5EC, 4 shots a day, 15mins apart, 1 hour after lights come on. 10 Blueberry Pancakes 2 Garlic Budder 1 Unknown Seed (Either Orangeade from Symbiotic or my last seed from my old cross, Cherry Trail Mix, Peanut Butter Breath x Trop Cherry. Hoping it’s my cross because I had to get rid of my mothers😪 I’d love to work with it more, it was my first cross ever🥲)