Newmarket, Ontario (Head Office)
1175 Stellar Drive, Unit #5
Newmarket, ON L3Y 7B8
- Mon10:00am–6:00pm
- Tue10:00am–6:00pm
- Wed10:00am–6:00pm
- Thu10:00am–6:00pm
- Fri10:00am–6:00pm
- Sat10:00am–4:00pm
- SunClosed
$0.00 CAD
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MIIM Horticulture Miicrobial Mass Pro is a microbial enhancer for plants that acts as a beneficial bacteria amendment for strengthening the root zone and improving nutrient availability. This plant amendment product is built for growers who want a focused way to support plant vigor and consistent performance in soil or hydroponic growing.
Miicrobial Mass Pro is comprised of several unique species of beneficial bacteria shown to promote plant vigor, increase plant biomass, and enhance microbial life in and around the root zone. Rather than a general “microbes for everything” approach, it uses a targeted approach to inoculate the rhizosphere with a microbial consortium optimized to cycle nutrients in very specific ways. That targeted, root-zone focus is what makes it especially relevant when you want more predictable root activity and steadier results through changing conditions.
A core value of this microbial enhancer for plants is how it supports nutrient dynamics in the root zone. It is positioned as an organic way to unlock phosphorus and micronutrients, helping the root environment function more efficiently. The proprietary blend of bacteria is also described as solubilizing phosphorus and assisting with the bioavailability of iron, which supports more consistent access to key nutrition already present in your program.
Miicrobial Mass Pro is associated with accelerated root development and a vigorous root zone, supporting the kind of root structure that helps plants stay stable and productive. A healthier, more active rhizosphere can translate into steadier growth momentum and more uniform development over time. Alongside root-focused benefits, it is described as maximizing fertilization efficiency and promoting good soil quality, making it relevant for gardeners who care about long-term soil performance as well as short-term plant response.
This product is described as effective in any growing media and hydroponic system, including soil, supersoil, rock wool, coco coir, expanded clay pellets, deep water culture, and other hydroponic systems. It is also described as effective in conventional or organic nutrient programs, keeping it versatile across different cultivation styles while staying centered on root-zone biology and nutrient cycling.
Miicrobial Mass Pro is a good fit for growers who want a concentrated beneficial bacteria solution to promote a vigorous root zone, support accelerated root development, and unlock phosphorus and micronutrients in soil-based gardens or hydroponic systems.
Step-by-step mixing and feeding instructions for MIIM Horticulture Miicrobial Mass Pro - 1 Litre.
Fill your reservoir or watering container with clean, room-temperature water first. Shake the bottle of MIIM Horticulture Miicrobial Mass Pro - 1 Litre well before every use. Using the feeding schedule below, measure the recommended dose and add it directly to the water while stirring. Allow the solution to mix fully before adding any other fertilizers, additives, or supplements.
Always add nutrients to water — not the other way around. Mix thoroughly between products to ensure an even, stable nutrient solution.
Vegetative stage — Miicrobial Mass Pro
Flowering stage — Miicrobial Mass Pro
Warning – Important Safety Information
This product may cause mild skin irritation and eye irritation. Avoid unnecessary contact with skin, eyes, and clothing. Use only as directed.
General safety precautions
Read and follow all instructions on the product label and any accompanying documentation before use. Keep out of reach of children and pets. Do not ingest. Avoid breathing vapours, mist, or dust that may be generated during handling or use.
Wear appropriate personal protective equipment (PPE), such as protective gloves, long sleeves, long pants and closed-toe footwear. When there is a risk of splashing or airborne particles, use safety glasses or other suitable eye and face protection.
First aid – skin contact
IF ON SKIN OR HAIR: Remove contaminated clothing immediately. Rinse skin with clean water for several minutes, then wash with mild soap and water. If irritation or redness develops and persists, seek medical attention. Wash contaminated clothing before reuse.
First aid – eye contact
IF IN EYES: Rinse cautiously with clean water for several minutes, keeping eyelids open. Remove contact lenses if present and easy to do. Continue rinsing. If irritation persists, obtain medical advice.
First aid – ingestion and inhalation
IF SWALLOWED: Rinse mouth thoroughly with water. Do not induce vomiting unless instructed by a medical professional. Seek medical attention if you feel unwell.
IF INHALED: Move the person to fresh air and keep them comfortable for breathing. If coughing, breathing difficulty, dizziness or other symptoms occur, seek medical assistance.
Storage and handling
Store this product in its original closed container, in a cool, dry and well-ventilated area. Protect from extreme temperatures and direct sunlight. Keep container tightly sealed when not in use.
Avoid release to drains, natural waterways or outdoor soil. Dispose of unused product and empty containers in accordance with local regulations and the directions on the label.
Important: If medical advice is needed, keep the product label or container available. Always follow the specific instructions and safety recommendations provided by the manufacturer. This safety notice is intended as general guidance and does not replace official label directions or documentation.
| Bacillus Velezensis U47 | 80000000.0 spores/g |
|---|---|
| Bacillus Velezensis U50 | 80000000.0 spores/g |
| Bacillus Licheniformis | 80000000.0 spores/g |
| Bacillus Megaterium | 80000000.0 spores/g |
| Bacillus Megaterium | 80000000.0 spores/g |
Bacillus licheniformis breaks down organic material, improves nutrient availability, supports stronger root growth, and helps protect the root zone, leading to healthier and more resilient plants.
Bacillus megaterium is uniquely valuable because it specializes in unlocking bound phosphorus and converting it into a plant-available form, something most other microbes cannot do as effectively. This direct nutrient-solubilizing ability sets it apart and makes it essential for plants that need consistent phosphorus availability for strong rooting, vigorous growth, and healthy flowering.
Bacillus velezensis U47 is unique because it rapidly forms stable colonies directly on the root surface, allowing it to protect roots, unlock nutrients, and strengthen growth more consistently than many similar microbes. Its ability to thrive in changing environments makes it more reliable and adaptable than strains that require very specific conditions to remain active.
Bacillus velezensis U50 is unique because it anchors directly to plant roots, produces powerful enzymes that unlock nutrients, forms long-lasting colonies through spore formation, and creates a protective biofilm that improves resilience. These traits make it more stable, adaptive, and effective than many other microbes that do not interact with roots as closely.
Beneficial bacteria live around roots and help make nutrients easier to absorb, support faster root growth, and protect the root zone by crowding out harmful microbes. They’re important because they make plant growth steadier and more forgiving, and they’re unique because they are living helpers that can establish and multiply in the root zone instead of being “used up” like a non-living ingredient.

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