Brightwell Aquatics

MicroBacter CLEAN

Grouped product items
MicroBacter CLEAN 250ml

SKU: 212058

In stock

$11.73 $11.73

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MicroBacter CLEAN 500ml

SKU: 212059

In stock

$21.06 $21.06

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MicroBacter CLEAN 1 L

SKU: 212060

In stock

$35.46 $35.46

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Complex system of non-pathogenic microbes and natural enzymes, specifically formulated to clean aquarium live rock and decorations.


The concentration of dissolved and particulate organic materials in any aquatic environment can have a significant impact on the overall appearance of, as well as the health of organisms residing within, that system. Relatively low-nutrient environments are characterized by high water clarity, lack of unpleasant odors, and absence of unsightly coatings; this is collectively a result of the lack of nitrogen-, phosphorus-, and carbon-based waste available. Aquaria that are relatively rich in available nutrients have characteristics opposite to the afore mentioned, and are typically not desirable because of the resultant appearance of the system and the difficulty of maintaining healthy aquarium inhabitants.


Brightwell Aquatics MicrōBacter CLEAN is a selective complex of extremely effective microbes and enzymes that not only reduce the concentrations of organic nitrogen, ammonia, nitrite, nitrate, phosphate, and organic carbon in all marine ecosystems, but make maintenance easy by actually loosening accumulations and coatings.




  • Natural Cleaning action on all aquarium and decoration surfaces
  • Loosening of ugly accumulations of unwanted substances and coatings, making removal by scraping and vacuuming much easier
  • Establishment of bacterial colonies that multiply and continue to clean the aquarium
  • Rapid reduction of organic carbon, ammonia, nitrite, nitrate, and phosphate
  • Digestion of uneaten/undigested food, excreta, detritus, and other latent organic material, resulting in cleaner and healthier aquarium substrate (without having to physically clean or disturb the substrate)


Instructions & Guidelines


Shake product well before using. Mix appropriate volume of MicrōBacter CLEAN (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 MicrōBacter CLEAN below water level of container or aquarium, be sure to thoroughly clean pipette with fresh water prior to placing tube back into MicrōBacter CLEAN bottle; failure to do so will contaminate the product. Best results may be obtained by adding mixture to external biological filtration system. Works particularly well with Xport. Do not add to pump intake port(s). Turn protein skimming and UV-sterilization off for a period of 4 hours following addition to aquaria. While utilizing MicrōBacter CLEAN continue good maintenance practices such as regular vacuuming, using purified water for additions, and limiting the addition of unnecessary nutrients.


For normal cleaning and to maintain a clean aquarium: Add 20 ml (4 capfuls) per 25 US-gallons (94.6 L) [≈16 drops per gallon (3.8 L)] of aquarium water weekly.


For problem aquariums or to rapidly accelerate cleaning: Add 30 ml (6 capfuls) per 25 US-gallons (94.6 L) [≈24 drops per gallon (3.8 L)] of aquarium water on the first day, then add Add 5 ml (1 capful) per 25 US-gallons (94.6 L) [≈4 drops per gallon (3.8 L)] of aquarium water daily for 2 weeks or longer as necessary until desired results are achieved.


Bacteria work slowly, so full results can take up to 8 to 10 weeks for long neglected sysytems.



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



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


MicrōBacter CLEAN does not require refrigeration, however storage in a cool, shaded area will prolong the activity, and maximize the shelf-life of the product. Keep away from heat!

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Product Questions

Hi, My aquarium started the ugly brown stage, I do have fish and shrimp in the tank, Would this harm the fish?
Question by: Luis Rivera on Nov 27, 2023, 10:49 AM
No, this would be perfectly safe to use with your fish and shrimp.
Answer by: Laura (BRS Staff) on Feb 6, 2024, 11:38 AM
Can I use this in freshwater aquariums?
Question by: TheBirdBabe on Jul 21, 2023, 10:37 AM
Is the use of this product detrimental to chaetomorpha or other macro algae that is being used in a remote refugium?
Question by: Gary Primeaux on Jan 22, 2023, 6:05 PM
Hey Gary, I would keep an eye on nutrients. As long as they are good, this should be fine.
Answer by: James Johnson (BRS Staff) on Feb 9, 2023, 5:23 PM
Can this be used in aquariums with fish, snails, coral, and shrimp?
Question by: Scott Palmer on Nov 23, 2022, 5:15 PM
Thanks for the question! This is a safe product dosed properly!
Answer by: James Johnson (BRS Staff) on Nov 26, 2022, 12:12 PM
How long after tank completes the cycling process can I add MicroBacter Clean to the tank. Trying to minimize the brown ugly stage of the tank.
Question by: Michael Pakla on Nov 11, 2022, 3:50 PM
Thanks for the question! You can add this product after the cycle completes, no need to wait a certain period of time before dosing. Please let us know if we can help with anything else!
Answer by: Kyle Thomas (BRS Staff) on Nov 17, 2022, 2:12 PM
Is it safe to refrigerate after opening?
Question by: John Hildebrant on Jan 16, 2022, 3:39 PM
Yes, it is safe to, but you do not need to.
Answer by: Matt Lucero (BRS Staff) on Jan 17, 2022, 12:17 PM