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⚖️ Coco VS DWC VS Soil ⚖️
— Comprasion grow —
— Pros&Cons of each medium —
Welcome to my next ”comprasion grow”. Will compare all three different growing mediums. Thanks for all the sponsors for supporting and making this possible! Here you will see two different strains all in different mediums
Strains:
- 2x Critical 2.0 XL Autos (Garden of Green)
- 2x Blackberry Kush Autos (Dutch Passion)
🥥 COCO 🥥
- 11L Fabric pot (Critical 2.0 XL)
- 6L Air Pot (Blackberry Kush)
- BioNova Coco coir
💦 DWC (Aeros bubbler) 💦
(1x Critical 2.0 XL)
- 15L reservior
- 6” Net cup
- 252l/h Air pump
📆 9/20/2021 - All seeds emerged and popped - First day success!
📆 9/21/2021 - Day #2
~ Mixed a new reservoir mix (dosages above)
~ Reduced DWC pH back to 5.8
~ Misting coco & soil plants with 6.0pH water wheres mixed GHE’s Root Booster
~ Slight Cal/Mag defiency on DWC Critical
📆 9/24/2021 - Critical 2.0 XL auto in DWC system slowly starting to heal from the heat/light stress. Blackberry Kushes having a lot faster growth compared to Criticals
📆9/26/2021 - It was a ruff week.. Had punch of problems with the DWC seedling, some of the seedlings having very slow start and signs of Cal/Mag deficiences appears.
~ 9/24/2021 mixed new reservoir mix:
- 1ml/l TriPart Micro
- 0.75ml/l TriPart Grow
- 0.25ml/l TriPart Bloom
- 4g/10L Silicate
- 5ml/10l Root Booster
- 0.45ml/l Cal/Mag
Any idea whats wrong with her? Or could anybody tell which causes those yellow and brown spots and edges of the leaves looking a bit crispy..
I added to the reservoir a bit of GHE’s Micro5-0-1 for plant to absorb small doses of Nitrogen. Also added Cal/Mag but no difference
With a plant so small it is hard to tell.
With your setup, however, the answer may be there:
What is your ppm?
What is your pH? (also what is your water natural pH?)
Does your pH keep spiking?
Is your RH good?
Did you mist with lights on?
At this stage, for say the first 2 week or so I wouldnt add any nutrients but just calmag at say 150 (based on RO or soft tap) and trust in the cotyledons to see you through until they a couple inches tall and the plant is more developed.
If your ppm is low (but suitable for the seedling stage) but your water supply base pH is high, you may be inadvertently getting a yoyo effect spiking your pH as when your low level ppm drops this can cause a pH spike similar to adding too high ppm and getting a yoyo from the other side.
From the looks of it I would say tox or pH issue and not underfed - under feeding at this stage is hard to do whatever your medium as them cotyledons do have enough food in them to see a plant through until its roots are developed enough to primarily absorb water rather than relying on RH and transpiration through leafs.
Not to sound daft, but you havent got your light on 100% at a distance where it should be on say 30%, have you? The leaf taco makes me think light burn or accidental burn from misting but DWC is so touchy it could be setup related, especially at this early stage where variables getting out of whack can have such devastating effects.
Sorry I cant be of more help, just so many variables and such a tiny plant it is hard to say for sure, although I would go veeeery easy on nutes for a while just in case you did accidentally dose it too high and aim for like 200-250ppm at the most and keep an eye out for deficiencies or further detrimental effects.
🌱 Week #2 🌱
———
💦 Critical 2.0 XL auto (DWC) 💦
Major problems with the DWC seedling.. First thought it was a Cal/Mag or Potassium deficiency, but looks like gotta deal with fungus gnats… BT Bacillus Hydroguard should be delivered soon.
🥥 Critical 2.0 XL auto (coco) 🥥
Her growth has been very slowly as well for the first weeks.
~ Gently started to feed her with 5.8pH water wheres mixed 0.5ml/l each from GHE’s TriPart (Micro, Grow & Bloom)
📆 9/30 - Light schedule changed to 20/4
~ Looks like DWC Critical slowly recorvering
📆 10/2 - DWC reservoir change and new patch:
- 9.5L for 1inch below the net cup
FEED:
- 0.35ml/l Cal/Mag
- 1.2ml/l GHE Micro
- 1.7ml/l GHE Grow
- 0.66ml/l GHE Bloom
- 2.5g/9.5L Silicate
EC: 1.6
pH adjusted to: 5.8
📆 10/3 - topped DWC Critical at 5th node
📆 10/6 - Topped Blackberry Kush (soil)
- New lighting: @Mars Hydro TS 1000
📆 10/7 - Hopefully fixed excess Fe(iron) which most likely caused the Calcium lockout earlier.
📆 10/13 - 1.8 EC seemed way too high since plant only drank, didn’t eat at all. So did a reservoir change to lower EC with fresh patch of nutes calculated and ~150ppm of Cannas new CalMag agent.
- 0.45ml/l CalMag Agent (0.4EC)
- 0.5ml/l Botanicare Hydroguard
- 0.9ml/l GHE Grow (0.7EC)
- 0.6ml/l GHE Micro (0.9EC)
- 0.5ml/l GHE Bloom (1.2EC)
~ After pH adjustments (5.9pH) ending EC 1.3 / 600-650ppm
📆 10/14 - topped coco Critical as well
- Still struggling with Ca uptake.
📆 10/7 - Still problems with DWC Criticals foliage
📆 10/20/2021 - 4th week:
- BB Kush turning into full bloom now, stretch seems to be over. Feed:
~Micro: 1.2ml/l & Bloom 2.4ml/l
- Critical 2.0 XL (coco) topped/cut off three uppest nodes. Hopefully does not stress the plant too much..
- Critical 2.0 XL (DWC) issues with nutrition balance still. Going to try lucas formula with Micro & Bloom (5-10-10) NPK. No signs of pre-flowering..might be due the excessive amount of N.
- - -
📆 10/21 - Made a new res mix for DWC:
1. Tap water starting TDS: 0.2 EC / 100ppmish
- 2:1 ratio GHE Micro & Bloom AKA Lucas
- 1.2ml/l Micro
- 2.4ml/l Bloom
- 1g/10L GHE Silica
- 0.5ml/l Hydroguard
2. Ending TDS: 1.4 EC / 700ppm (~100-150ppm of Calcium & Magnesium)
📆 10/21 - Criticals not yet to flower… Upping P & K doses from now. Hopefully getting more structure
📆 10/22 - Overnight DWC Critical ate 0.2 EC / 100ppm worth of food.
~ EC adjusted back to 1.4 (0.4 EC / 200ppm aten in past 24hrs)
📆 10/24 - EC drop from 1.3 to 1 (150ppm drop)
~ Topped res with 1:3 Micro:Bloom
- EC 1.6
- 10/24 — 12/12 LIGHT CYCLE for couple of days (Hopefully Critical starts to flower)
📆 10/25 - Start of the 5th week:
- Criticals no signs of pre-flowering… Trying to force them bloom with 12/12 lights. (Strain feels sketchy, may have lost the ruderalis genetics and may not be full autoflower) **12/12 lights set 10/24**
- DWC goes with ”Lucas formula”
~ 1.5ml/l Micro
~ 3.5ml/l Bloom
10/24 Starting EC: 1.6
10/24 Starting pH: 5.8
- Black Berry Kush doing great. Internodal spacing is a bit lanky but hopefully they fully connect
FEED:
- 1.2ml/l Micro
- 2.4ml/l Bloom
- 2x Drops GHE Pro Bloom
- 1ml/l BioBizz TopMax
- 4ml/l Kelp/Seaweed extract
- Critical 2.0 XL (coco)
Lucas with 1:2 ratio
10/24 Starting with 1ml/l M & 2ml/l B
- EC: 1.3
- pH 6 before irrigation
📆 10/28 - Day #40
- Possible bananas on coco Critical…😖 looks like a hermie
- new res mix for DWC:
~ 0.75ml/l Micro
~ 1.5ml/l Grow
~ 0.75ml/l Bloom
1.8 EC starting - 5.6pH
- topped res twice to maintain 1.7 EC (0.1-0.3 drop per 24h)
- Blackberry Kush buds setting
📆 10/29 - Day #41 / Major changes
- Both Criticals turned out as a hermies… Just don’t get it. Genetics.
- Single strain left Black berry Kush automatic.
📆 10/30 - Flushed the plant since there was slight clawing and foliage looked kinda lush green.
- 10/30 78cm tall
- Feed: ~2-2.2 EC / 1000-1100ppm
pH adjusted to 6.5 before irrigation
📆 11/1 - Slight Ca deficiency appears on never growth. Gave them 0.4 EC Cal-Mag buffer.
- Run off EC were 1.1 ~ all goodie!
- Run off pH were 6.3 (BLM had 6.5 so barely no built up salts at all even tho theres slight N tox/clawing visible)
📆 11/5 - Ca def got worse -> flushed the pot with 8pH tap water + gave slight nutrition and ~250ppm worth of Cal/Mag
- Budlets getting nice purplish hue, which may turn into darker ”blackberry like”.
- 11/5 gave first dose of Terpinator (1.5ml/l)
📆 11/7 - end of the 6th week/start of the 7th
- Watering volume ~1.75L every two days:
- 1.7ml/l Micro (slight N & Ca bump)
~100ppm N
~95ppm Ca
- 2ml/l Bloom
- 1.5ml BioBizz Bloom (slower release Phosphorus)
- Terpinator 2.2ml/l (~100ppm K bump)
EC: 2.5 / 1250PPM
pH: 6.2
📆 11/10 Last two waterings only ~200ppm of Cal/Mag & 2.5ml/l Terpinator
📆 11/13 Pistils slowly turning into brown. 40/60 milky/clear trichomes.
Upcomming 8th week (starts in two days) will be most likely last heavy feed week.
~ Ramping up K values up to 250-300ppm — Found Terpinator to be perfect for this late flowering + increases terpnes.
~ N amounts were lowered down to 90-110ppm but have to raise it back to 150ppm if upping Potassium values between 250-300ppm.
~ Shit loads of Ca supplementing to maintain 3:1 Ca:Mg ratio — Looks they need even more than 70ppm of Mg.
📆 11/15 - Start of the 8th week, which will be called ripenin for now 😎 Pistils slowly starting to turn into brown so want to juice everything out of it.
Feeding only Terpinator, beneficials and hummus/fulvic acids.
~ Might start droughting maybe later on this week. (Aiming for at least 5-7 days dry cycle)
📆 11/18 - ::PREPARATION:: for Drought stress/Droughting
- Flushed the air pot with ~25L of soft tap water, pH adjusted to 7 before flushing — After flush gave her a good dose (150ppm) of Terpinator and 250ppm of Canna’s Cal/Mag agent.
- Last irrigation (1L) were fed 11/18 and Drought stress test starts from here.
📆 11/19 Drought stress/Droughting started.
• Set up pin point
• 64.5° starting angle (praying like that most likely first 3 days)
» If/when the angle gets over 120° then re-irrigation
» 105-110° Would be ideal stress test angle.
📆 11/22 - Drought Stress 4th day / slight wilting (~95°) — 4 days without water
📆 11/23 - Drought stress 5th day / Minor wilting — irrigation applied after 5 days. ~3.5L water was given with Terpinator & Bloom boosters.
- 9th week will be most likely the last week before harvest!
- 2nd Drought Stress test started 11/23 after irrigation.
📆 11/25 - Started flushing with Canna Flush and lowered soil pH down to 4.5 - Trying to bring out colors even better before harvest
📆 11/26 - Last waterings! 🍋 Mixed a lemon juice(Sicilia) and sugar brew. Acid lemon juice should activate Limonene-terpene & Limonene was the primary Terpene on Blackberry Kush.
- Soil pH between 4.5-5.5 ~ Purplish shades appearing on the remaining foliage.
📆 11/27 - Trichomes telling me shes ready to be harvested! 🥦
- Doesn’t really drink anymore & remaining foliage slowly drying down.
📆 11/28 ✅ HARVEST! ✅
This strain was a pleasure to grow!
It was a strong, the most spectacular plant from the group. Always stepping up.
The pheno was very resillient, growth was very fast and first pistils showed up after two weeks.
Little neglected her when the stretch phase started - didn’t tie her down enough so she got a bit leggy (78cm tall) so there wasn’t really even canopy.
And halfway through the flowering Magnesium deficiency or a lockout occured and never found a good solution to fix that. What Ive read Kushes need very large amounts of Ca&Mg during the flowering, and might be that 3:1 ratio of Ca:Mg had a synergism and decreased availability due the excess of other.
Still managed to get some massive main colas.
And can’t say enough how pleased I’m the colors! This plant growth was simply art.
Verbalist
