Standard U.S. shipping: $12.99; free standard shipping on eligible qualifying orders of $100 or more. Specialty shipments are charged separately.
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Standard/Economy: $12.99; free standard shipping on eligible qualifying orders of $100 or more.
Most in-stock orders process in 1–3 business days. Estimated standard transit is 5–12 business days after dispatch. Backorders, preorders, and special orders follow their stated lead times. Dates are estimates, and separate shipments may have separate charges.
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The MicrōBacter7 Complete Bioculture rapidly improves water quality in freshwater and marine aquariums by creating biological filtration.
Brightwell Aquatics MicrōBacter7 Biological Filtration & Water Quality Enhancer
Establish a healthier, crystal-clear aquarium with MicrōBacter7.
MicrōBacter7 is an advanced blend of non pathogenic aerobic and anaerobic bacteria combined with natural enzymes, designed to rapidly establish and strengthen biological filtration in both saltwater and freshwater aquariums.
Perfect for new tank setups or improving existing systems, this formula accelerates nitrification, denitrification, and organic waste breakdown helping create a stable, low nutrient environment where your fish and corals can thrive.
Developed using extensive microbiological research, MicrōBacter7 is supplied in a suspended state for maximum potency and offers a long shelf life of up to 2 years.
Key Benefits
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Rapidly reduces ammonia, nitrite, nitrate, phosphate, and organic waste
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Breaks down uneaten food, detritus, and fish waste
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Helps maintain a cleaner substrate and healthier tank environment
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Improves water clarity and overall system stability
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Reduces hydrogen sulfide production
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Increases dissolved oxygen levels
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Helps prevent algae and cyanobacteria growth
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Supports beneficial photosynthetic organisms
Why It Matters
Excess nutrients and organic waste can quickly lead to cloudy water, odors, algae outbreaks, and unhealthy livestock.
MicrōBacter7 works by converting waste into usable nutrients, restoring balance and improving overall water quality resulting in a cleaner, clearer, and more stable aquarium.
How to Use
Before Use:
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Shake well
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Mix recommended dose with ~8 oz (250 mL) of aquarium water before adding
Important Tips:
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Turn off protein skimmer and UV sterilizer for 4 hours after dosing
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Do not add directly to pump intakes
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Clean any pipettes before reinserting into the bottle
Dosing Instructions
New Tanks / High Nutrient Systems
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Dose 5 mL per 25 gallons daily for the first 2 weeks
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Expect noticeable improvements in water clarity within days
Established / Low Nutrient Systems
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Dose 5 mL per 50 gallons once per week
OR -
Dose 1 mL per 50 gallons daily
Adjust dosing as needed, but do not exceed:
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1 mL per 25 gallons per day
When increasing bioload or adjusting filtration:
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Dose 1 mL per 25 gallons daily for 1 week, then return to maintenance dosing
Storage
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No refrigeration required
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Store in a cool, shaded area for best results
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Refrigeration will extend shelf life further
Ingredients
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Purified water
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Proprietary blend of natural enzymes
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Non-pathogenic beneficial microorganisms
Safety
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Keep out of reach of children
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Not for human consumption