Brightwell Aquatics

FlorinBacter7 - Complete Freshwater Bioculture

Grouped product items
FlorinBacter (250 mL)

SKU: 252500

In stock

$9.30 $10.94

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FlorinBacter (500 mL)

SKU: 252501

In stock

$16.89 $19.87

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Complete Bioculture for all Freshwater and Planted Aquaria

  • Suspension of non-pathogenic aerobic and anaerobic microbes to establish biological filtration
  • Enhances the rate of nitrification, denitrification, and organic waste degradation
  • Includes natural enzymes to help reduce organics
  • Formulated for use in freshwater aquariums
  • Useful in tanks with fish that are active swimmers and/or require frequent feeding
  • Supplied in a state of suspended animation for maximum longevity
  • Formulated using data compiled by microbiologists


The amount of organic materials in water can affect its clarity as well as the health of the organisms living in it. When there are fewer nutrients in the water, it is clear, colorless, odorless, and relatively free from algae or harmful bacteria. On the other hand, when there is a build up of excess nitrogen, ammonia, nitrite, nitrate, phophate, and carbon; water clarity and the health of your tank inhabitants will suffer.

Brightwell Aquatics FlorinBacter is a selective complex of extremely effective microbes and enzymes that rapidly reduces the concentrations of such organic compounds in freshwater ecosystems, leading to greatly improved water quality, leading to healthier aquarium inhabitants. Use of FlorinBacter does not alleviate the requirement for regular partial water changes to help maintain proper concentrations of elements that are vital to long-term health and survival of aquarium inhabitants. No product, regardless of manufacturer's marketing claims, can do this.


Instructions & Guidelines

Shake product well before using. Mix appropriate volume of FlorinBacter (see below) with 250-ml (~8 fl. oz.) of aquarium water in a clean container prior to addition to aquarium. If using a pipette to dispense FlorinBacter below water level of container or aquarium, be sure to thoroughly clean pipette with fresh (preferably purified) water prior to placing tube back into FlorinBacter bottle; failure to do so will contaminate the product. Best results may be obtained by adding mixture to external biological filtration system (if applicable). Do not add to pump intake port(s), which can negatively impact the microbes present in FlorinBacter. For best results, use within 1-year of purchase date. Grossly overdosing FlorinBacter will not significantly increase the effectiveness of the product, nor the rate at which it enacts changes in aquaria. The following recommendations are based upon extensive testing and will produce the best results in most aquaria.

Medium- to High-nutrient Systems, or to seed Biological Filtration in new aquaria: To effectively decrease the concentration of available nutrients and waste material in all freshwater aquaria, add 5 ml (1 capful) per 25 US-gallons (94.6 L) [≈4 drops per gallon (3.8 L)] of aquarium water daily for the first two weeks of use; the impact that FlorinBacter has on an aquarium is most evident within this period. Turn UV-sterilization and/or ozonation off for a period of 4 hours following addition to aquaria. A noticeable difference in water clarity is typically apparent within 30-minutes of dosing. Follow same instructions for new aquarium start-up. Thereafter, switch to "low-nutrient" dosage (below).

Stable, Low-nutrient Systems: To maintain a low concentration of available nutrients in freshwater aquaria, dose 5 ml (1 capful) of FlorinBacter per 50 US-gallons (189.3 L) [≈2 drops per gallon (3.8 L)] of aquarium water no more than once each week; alternately, and for best results, add 1 drop per 50 US-gallons daily (or 1 drop per 25 US-gallons every other day). UV-sterilization and/or ozonation off for a period of 4 hours following addition to aquaria.
Dosage may be adjusted according to perceived benefit to aquarium, however it is recommended that the dosage not exceed 1 drop per 10 US-gallons per day. With time, aquarists may determine that decreasing the dosage by up to 50% sufficiently maintains a low-nutrient environment. During changes in biological filtration or when increasing the aquarium bioload, dose 1 drop per 25 US-gallons daily for one week, then resume "low-nutrient" dosage.


Caution: Keep out of reach of children. Not for human consumption.


Ingredients: Purified water, proprietary blend of natural enzymes and non-pathogenic, beneficial microorganisms.

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