University-Developed Microbial Technology for Maximum Phosphorus Uptake

Unlock the full genetic and yield potential of your indoor or greenhouse crops with Mammoth P Active Microbials. Developed by soil microbiologists at Colorado State University through a patented trait-selection platform, Mammoth P is a targeted liquid consortium of beneficial phosphorus-solubilizing bacteria engineered to mobilize nutrients that frequently become chemically bound in your root zone. Independent laboratory trials and commercial crop runs demonstrate an average 16% increase in flower and fruit yields alongside shorter internodal spacing, stronger root architecture, and vibrant canopy health from propagation through late-stage bloom.

Four Targeted Beneficial Bacteria Acting as Micro-Bioreactors

Unlike broad-spectrum compost teas or generic inoculants that struggle to survive in high-EC nutrient solutions, Mammoth P utilizes four scientifically selected bacterial strains trained to cycle phosphorus over 30 times faster than wild soil microbes. Once introduced to the rhizosphere, these beneficial microbes act as living micro-bioreactors—continually secreting natural enzymes and organic acids that break down insoluble phosphorus compounds and chelate micronutrients into immediately bioavailable forms for rapid root absorption.

Clean-Running, Near-Neutral pH Formula for All Growing Media

Formulated with a clean-running, near-neutral pH, Mammoth P integrates seamlessly into any existing synthetic, mineral, or organic fertilizer regimen without causing reservoir pH drift or clogging drip emitters, aeroponic misters, and recirculating hydroponic lines. It performs with consistent reliability across:

Recirculating & Drain-to-Waste Hydroponics: DWC, RDWC, Ebb & Flow, NFT, and Aeroponics
Soilless Substrates: Coco Coir, Rockwool, Peat Mixes, and Perlite
Living & Amended Soils: Indoor Containers, Raised Beds, and Outdoor Gardens

Ultra-Concentrated Application & Extended Shelf Stability

Highly concentrated for professional return on investment, Mammoth P requires only 0.6 mL per gallon (0.16 mL per liter) applied twice per week throughout propagation, vegetative growth, and flowering. Its refined liquid suspension delivers a shelf life exceeding 2 years unopened (use within 6 months of opening for peak microbial potency). To preserve live bacterial viability, avoid mixing directly with chlorine, hydrogen peroxide (H2O2), or hypochlorous acid sanitizers; allow 12 to 24 hours after reservoir sterilization before inoculating.

Guaranteed Analysis & Active Ingredients

Active Bacteria Culture (1% Total):
- Enterobacter cloacae — 1 × 10⁶ CFU/mL
- Citrobacter freundii — 1 × 10⁶ CFU/mL
- Pseudomonas putida — 1 × 10⁴ CFU/mL
- Comamonas testosteroni — 1 × 10⁴ CFU/mL
Inert & Carrier Ingredients: Plant Extract (2%), Purified Water (97%)

Technical Specifications

Brand / Manufacturer: [Mammoth](https://www.mammoth-ag.com/enhance/mammoth-p/) (Growcentia)
Product Form: Concentrated Liquid Microbial Inoculant
Standard Application Rate: 0.6 mL per Gallon of Water (Apply Twice Weekly)
System Compatibility: Hydroponics, Coco Coir, Rockwool, Soilless Mixes & Soil
Growth Stages: Clone / Seedling, Vegetative & Flowering / Bloom
pH Impact: Near-Neutral (Does Not Alter Reservoir pH)
Shelf Life & Storage: 2+ Years Unopened (Use Within 6 Months of Opening); Store Out of Direct Sunlight
Available Bottle Sizes: 120 mL, 250 mL, 500 mL, 1 Liter, 1 Gallon (4L), 2.5 Gallon & 5 Gallon

Hydroponic Nutrients

Mammoth P Active Microbials – Phosphorus-Unlocking Microbial Inoculant & Bloom Booster (OMRI Listed, Soil, Coco & Hydroponics)