Collection: Aquatic Probiotic Blends | Multi-Strain Beneficial Bacteria | Biotech Aquatica

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BTA Probiotic Range

AQUATIC PROBIOTIC BLENDS

Multi-strain beneficial bacteria for aquaculture, aquariums and reef systems. True consortia selected for water quality, waste breakdown and microbial balance — mixed in Australia.

25Strains (Microplex)
6.5×10¹⁰CFU/g
5Blends
AUSMixed & OEM
CUSTOM Microbe Market — 23 Individual Strains & Custom Mixing Service
25-STRAIN Microplex — Complete Biological Water Conditioning at 6.5 × 10¹⁰ CFU/g
FUEL OC-K — 24-Hour Organic Microbial Nutrition
True Consortia
25-Strain Microplex
Waste Breakdown
Water Clarity
FW & Marine Safe
Australian Mixed
One-dimensional bacteria products treat every system the same. BTA's probiotic range is different — each blend is a purpose-selected consortium with a specific job. Microplex for all-round conditioning. PMX8 for display-water clarity. SUB-6 for substrate-to-plankton cycling. OC-K to fuel them all. Manage the microbiome, don't just add to it.

FIVE BLENDS, FIVE JOBS

Every product in the range has a defined biological role. Pick the blend that matches your system goal — or stack them for complete coverage.

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Microplex

25 synergistic strains at 6.5 × 10¹⁰ CFU/g. The all-round biological water conditioner — nitrification core, waste recycling and microbial balance in one blend. FW & marine, 4°C–35°C.

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PMX8

8 strains at 1 × 10¹¹ CFU/g for display and reef water quality. Spore-forming Bacillus, Streptomyces, Rhodotorula and Bdellovibrio establish a resilient beneficial biofilm and clear, stable water.

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SUB-6

6 Bacillus strains at >135 billion CFU/g. Digests organic sludge, remineralises waste into phytoplankton fuel, and mobilises locked-up N, P, K and Si — closing the nutrient loop.

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OC-K

100% organic growth fuel. Alcohol-free carbon donors from digested marine biomass with a metalloenzyme core — stable 24-hour microbial fuelling. All BTA strains are pre-adapted to it.

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Microbe Market

23 individual strains in 10g packages, pre-made consortiums, and a custom mixing & OEM formulation service. Build the exact blend your system needs — full traceability.

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WHY BTA BLENDS

Not all bacteria products are built the same. Four things set the BTA probiotic range apart.

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True Consortia

Cultured together as synergistic communities — not post-blended powders. Synergy is tested before the blend leaves the lab.

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Purpose-Selected

Every strain chosen for aquatic systems — nitrifiers, waste recyclers and balance specialists in defined roles, not repurposed terrestrial products.

OC-K Pre-Adapted

Grown on the carbon they'll eat in your system. Zero start-up lag, no food-source switching, no boom-and-bust cycles.

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Australian Mixed

In-house mixing and OEM formulation with full batch traceability on every order. Open strain library, published CFU counts.

BLEND MATRIX

Strains, CFU counts and primary roles across the probiotic range at a glance.

Product Strains CFU/g Primary Role
Microplex 25 synergistic 6.5 × 10¹⁰ All-round water conditioning
PMX8 8 synergistic 1 × 10¹¹ Display & reef water quality
SUB-6 6 Bacillus >1.35 × 10¹¹ Substrate & plankton support
OC-K Nutrient matrix Microbial growth fuel
Microbe Market 23 individual Varies Custom mixing & OEM

All products Australian stocked. Custom formulations and bulk quantities available on request.

FREQUENTLY ASKED QUESTIONS

Q What's the difference between the blends?
Each targets a specific biological function. Microplex is the all-round conditioner, PMX8 focuses on display-water clarity and biofilm health, SUB-6 digests sludge and fuels phytoplankton, and OC-K is the nutrient fuel that supports them all.
Q Can I use the blends together?
Yes — the range is designed to stack. Microplex manages the water column, PMX8 supports display clarity, SUB-6 works the substrate layer, and OC-K fuels the whole community. Contact our team for a stacking schedule matched to your system.
Q Are they safe for reef and display systems?
Yes. All strains are naturally occurring and reef-safe. PMX8 in particular is selected for display and reef systems where water clarity and stability matter most.
Q Do they work in freshwater and marine?
Both. The range covers freshwater and marine systems across 4°C–35°C, with marine-specific strains like Marine Rhodotorula in the library.
Q How do I choose the right blend?
Start with your system goal — water conditioning, display clarity, or substrate management. Our microbiology team can analyse your water chemistry, bioload and species and recommend the right combination and use rates.

BUILD YOUR BIOLOGICAL CORE

Not sure where to start? Our microbiology team will analyse your system and recommend the right blend combination, use rates and OC-K fuelling.