Growers science nutrients

11/01/2026

Some nice close-ups of my Gorilla Glue number four

https://www.facebook.com/share/g/1W1dcwCnqH/

11/01/2026

Some close-ups of my Gorilla Glue number 4

10/31/2026

DIAGNOSING POSSIBLE NUTRIENT DEFICIENCY — MOBILE VS IMMOBILE

Understanding whether a mineral is mobile or immobile helps you identify what deficiency you're seeing — by where it shows up on the plant.

🔁 BASIC RULE:

If it starts at the TOP → IMMOBILE mineral
Ca, S, Fe, Cu, B

If it starts at the BOTTOM → MOBILE mineral
N, P, K, Mg

⚖️ SEMI-MOBILE MINERALS:

Mo (Molybdenum)

Mn (Manganese)

Zn (Zinc)

These show up on both tops and bottoms depending on source.
Some books list them as mobile, others immobile.
I personally call them semi-mobile.

➡️ In most publications, Mo, Zn, and Mn are listed as immobile.
➡️ In Dr. Howard M. Resh’s Hydroponic Food Production, Zn is listed as mobile.
➡️ I've also seen Mo and Mn listed as mobile in university references.

💡 Tip: Rule out other minerals first. If nothing fits, check Zn, Mo, or Mn — they’re wildcards.

🔧 PRACTICAL FIX:

Truth is, you rarely need this info if you’re feeding properly.

If you run into problems, the fastest fix is:

🧴 Flush with a full pot volume of balanced nutrient solution.
Example:
5-gallon pot → flush with 5 gallons of fresh, balanced 12-mineral solution.
If it’s nutrient-related, you’ll often see results in 12–24 hours.

⚠️ 70–80% OF “DEFICIENCIES” AREN’T DEFICIENCIES.

They’re osmotic lockout caused by:

High EC (fertilizer/salt buildup)

Poor runoff

Media saturation

Improper flushing

📉 pH matters too, but EC is often overlooked.

✅ WHEN IN DOUBT:

Flush with a complete 12-mineral solution:
N, P, K, Ca, Mg, S, Fe, Mn, Zn, Mo, Cu, B

🧭 DIAGNOSTIC DECISION TREE (Quick Key):

Start:
Is it at the TOP or BOTTOM?

If TOP → IMMOBILE → Go to B or BB

If BOTTOM → MOBILE → Go to C or CC

Then continue through the chain until symptoms match

John & Alex
cGSg
https://www.growersscience.store/shop

10/26/2026

Bud Candy

I am continuing on with breaking down minerals by their atomic weight . The atomic weight is the number under the symbol . You don't have to memorize this, but it really helps when looking at a formula to decipher it . It takes away the mystery and shows you it's the same ingredients as 100% of all formulas derived from refined minerals

Bud Candy :

Nitrogen (N) — 0.8%
Magnesium (Mg) — 0.5%
Soluble Potash (K₂O) — 0.5–1.0%

1 gram per liter
N. 8ppm
Mg 5ppm
K 5 to 10 ppm

Alchimia
Carbohydrates
D-Ribose — 7.0%
Glucose — 4.0%
Maltose — 1.6%
D-Xylose — 1.0%
D-Galactose — 0.5%
Minerals
Magnesium (water-soluble) — 0.5%
Other ingredients mentioned in various product descriptions
Potassium sulfate
Trace elements
Organic acids
Citric acid
Ascorbic acid
Polyphenolic compounds
Raw cane juice
Sweet brown molasses
Cranberry extract
Grape extract
Malt extract
Fermented yeast extract
B vitamins
Amino acids
Green Country +1

Plants don't absorb sugars or any of these extracts. They absorb single elements.
This list was made to attract the customer not for the plants.
The acids are just weak acids and will essentially be nullified quickly as they have very little acidification quality. They will do nothing for the plant.
Some people say that Sugar will stimulate microbes which is true what microbes? They could be pathogenic they could be aerobic? Beneficial doesn't really cover anything because what benefit would they be doing? Sugar does help in composting somewhat but not in your actual growing media. Really attracts insects as well.

35$ a liter is insane.

At the recommended dose of two ml means that this bottle of will make 500 L of solution.
So it will add around five parts per million of nitrogen magnesium and potassium. Completely negligible.

This is their advertising
"Remember that time you first tried cotton candy at the local County Fair? It was pure delight that melted in your mouth and left your fingers gooey and sticky"
They are literally trying to suggest that somehow because this is sweet that it's going to make your plants sweet. That is not how plants work. The sugars do not osmotically translocate from The Roots to the buds somehow making them sweet. That is just pure pseudoscience.

This definitely gets my SCAM rating.
If I had a big scam stamp I could put over it I would

10/25/2026

Fusarium solani is another major plant pathogen. Like Fusarium oxysporum, it is a true fungus, not a bacterium or a virus.

Here's a quick comparison:

Organism Type Common Disease

Fusarium oxysporum Fungus Vascular wilt, root rot
Fusarium solani Fungus Root rot, stem rot, crown rot
Pythium spp. Oomycete (water mold) Root rot
Phytophthora spp. Oomycete Root/crown rot
Rhizoctonia solani Fungus Damping-off, root rot

One interesting difference is that Fusarium oxysporum tends to invade the plant's vascular tissue (xylem), plugging up the water-conducting vessels and causing wilting. Fusarium solani is often more aggressive at directly rotting roots and the crown of the plant.

Given your experience with rockwool, you've probably noticed something else: a plant with Pythium often has soft, brown, slimy roots that slough apart, whereas Fusarium infections can leave the roots firmer but discolored and often produce reddish-brown streaking in the crown or stem.

If your goal is to understand what's actually living in a hydroponic root zone, the biggest disease-causing organisms are usually:

Pythium (oomycete)

Fusarium oxysporum (fungus)

Fusarium solani (fungus)

Rhizoctonia solani (fungus)

Phytophthora (oomycete)

Those are the pathogens commercial growers are most concerned about because they can cause significant losses in hydroponic systems.

10/25/2026

Fusarium solani is another major plant pathogen. Like Fusarium oxysporum, it is a true fungus, not a bacterium or a virus.

Here's a quick comparison:

Organism Type Common Disease

Fusarium oxysporum Fungus Vascular wilt, root rot
Fusarium solani Fungus Root rot, stem rot, crown rot
Pythium spp. Oomycete (water mold) Root rot
Phytophthora spp. Oomycete Root/crown rot
Rhizoctonia solani Fungus Damping-off, root rot

One interesting difference is that Fusarium oxysporum tends to invade the plant's vascular tissue (xylem), plugging up the water-conducting vessels and causing wilting. Fusarium solani is often more aggressive at directly rotting roots and the crown of the plant.

Given your experience with rockwool, you've probably noticed something else: a plant with Pythium often has soft, brown, slimy roots that slough apart, whereas Fusarium infections can leave the roots firmer but discolored and often produce reddish-brown streaking in the crown or stem.

If your goal is to understand what's actually living in a hydroponic root zone, the biggest disease-causing organisms are usually:

Pythium (oomycete)

Fusarium oxysporum (fungus)

Fusarium solani (fungus)

Rhizoctonia solani (fungus)

Phytophthora (oomycete)

Those are the pathogens commercial growers are most concerned about because they can cause significant losses in hydroponic systems.

10/23/2026

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Canada • USA • UK • Europe • Australia • Mexico

Real Results. Proven Formulas. No Hype.

I spend over 12 hours a day running this platform—providing free advice and support in exchange for the opportunity to earn your business.

🧪 MY FORMULA

✅ 12 Essential Minerals

✅ Complete 2-Part Fertilizer — Veg & Bloom

✅ NO Additives or Supplements Required

✅ Made from High-Purity, Ultra-Soluble Compounds

✅ Designed by a Full-Time Grower Since 1989

✅ Tested & Proven: Up to 6.6 lb/kW using nothing but this formula and proper agricultural practices.

🌍 Available Locally

🇨🇦 Canada • 🇺🇸 USA • 🇦🇺 Australia

No Extra Shipping Charges

📩 TO ORDER

Message:

JOHN SMITH, ALEX SMITH or JOHN GREEN (Admin)

💲 PRICING – CAD

(Includes Shipping Within Canada)

1 Litre Combo — C$78

Makes 400 L @ 600 ppm

4 Litre Combo — C$149

Makes 1,600 L @ 600 ppm

2 × 4 Litre Combo — C$298

Makes 3,200 L @ 600 ppm

20 Litre Combo — C$462

Makes 8,000 L @ 600 ppm

2 × 20 Litre Combo — C$817

Makes 16,000 L @ 600 ppm

100 Litre Combo — C$1,690

Makes 40,000 L @ 600 ppm

1000 Litre Combo — C$12,250+

Makes 400,000 L @ 600 ppm

🌎 International Pricing

(Mexico, Europe, UK, Australia, etc.)

4 Litre Combo — C$199

2 × 4 Litre Combo — C$298

20 Litre Combo — C$568

2 × 20 Litre Combo — C$923

💧 Cost Per Gallon

4 Litre Combo = 34¢

20 Litre Combo = 21¢

100 Litre Combo = 16¢

1000 Litre Combo = 11¢

VEG & BLOOM COMBOS

(A + B — Fully Complete)

Makes:

1 Litre Combo = 400 L @ 600 ppm

4 Litre Combo = 1,600 L @ 600 ppm

20 Litre Combo = 8,000 L @ 600 ppm

FORMULA CONTENTS @ 5 mL/L

(600 ppm / 1.2 EC)

VEG

N – 165 ppm

P – 40 ppm

K – 177 ppm

Ca – 183 ppm

Mg – 45 ppm

S – 70 ppm

Fe – 3.5 ppm

Mn – 1.2 ppm

Zn – 0.2 ppm

Mo – 0.03 ppm

Cu – 0.05 ppm

B – 0.65 ppm

BLOOM

N – 79 ppm

P – 50 ppm

K – 159 ppm

Ca – 112 ppm

Mg – 44 ppm

S – 98 ppm

Fe – 3.15 ppm

Mn – 1.1 ppm

Zn – 0.18 ppm

Mo – 0.027 ppm

Cu – 0.045 ppm

B – 0.59 ppm

50/50 VEG + BLOOM MIX

N – 122 ppm

P – 45 ppm

K – 168 ppm

Ca – 148 ppm

Mg – 45 ppm

S – 107 ppm

Fe – 3.33 ppm

Mn – 1.15 ppm

Zn – 0.19 ppm

Mo – 0.029 ppm

Cu – 0.048 ppm

B – 0.62 ppm

📌 If you're running lower EC (e.g. 1.0), values scale down accordingly.

🌸 FEEDING SCHEDULE

Weeks 1–2 Flower: VEG Formula

Weeks 2–4 (or 5): 50/50 VEG + BLOOM

Week 4 or 5 onward: BLOOM Formula

Optimized for the proper Potassium to Nitrogen (K:N) transition.

VEG = 1:1

BLOOM = 2:1

📦 DRY SHIPPING = MASSIVE SAVINGS

Ships in dry form to reduce shipping costs by approximately 90%.

Simply mix with RO or distilled water.

💧 CUSTOM DRIP EMITTERS

Manufactured to seal directly into ½" tubing.

No additional fittings required.

Includes a 36" line and stake.

C$3.55 each

❗Contact me directly regarding emitters.

🧪 CUSTOM FORMULAS AVAILABLE

Need something specific?

I can custom formulate or duplicate almost any fertilizer.

Send me the guaranteed analysis and your desired volume for a quote.

(Custom formulas are generally +25% over the standard formula.)

📨 TO ORDER

🌐 https://www.growersscience.store/shop

Or send:

Name

Address

Phone

Email

Your Order

💳 PAYMENT

PayPal: Alex Oster

[email protected]

✅ Friends & Family Preferred

💳 Credit Card Invoice Available (+4.5% PayPal Fee)

📧 [email protected]

📞 647-830-3001

Thank you,

John & Alex

Growers Science

🌐 https://www.growersscience.store/shop

I ship in dry form to save ~90% on shipping. You'll need to mix with RO or distilled water. Example: Buy two 4L jugs of RO water (~$1–2 each), add VEG A to one and VEG B to the other to create a balanced liquid concentrate.

10/23/2026

Took down another table today. A mix of Moab and the Gorilla Glue number for and the other one I got zerios. The Gorilla Glue number for and that zerios are very similar in smell and appearance. They smell like typical w**d nothing too different. The Moab though is a very distinct fruity acrid smell and is shorter in the buds tend to be bigger.. this won't be one of the bigger ones I only had so many clones so I double spaced the plants so probably planted 60 and left a lot of Cubes empty but they were larger plants when they went in. The problem is is that they create a canopy effect when you have larger plants cuz you get the bottom branching which normally I don't get when they're put in small. If you fetch them too long you end up losing the bottom 25% or so just cuz those branches come out and they make it so there's no light and I even had a couple of buds that were moldy the bottom ones not top so we just toss that but only a few plants the Moab is surprisingly resistant.
/ I might get a thousand grams I might get 900. But my fridge is filling up with w**d anyway so it's kind of irrelevant. As I said I do this for the benefit of the group and if I can sell some of the w**d on the side and recoup some money then I'm okay with that.
When I had all of the extra clones from the springtime and everybody stopped buying them I just planted a bunch of tables really fast so they're not in any schedule so one just came down a week or so and then this one and the one next to it is pretty much ready as well..