{"product_id":"brightwell-microbacter-purple-m-500ml","title":"Brightwell Aquatics MicroBacter Purple M 500 mL – Marine PNSB Bacteria Supplement","description":"\u003cp\u003eBrightwell Aquatics MicroBacter Purple M 500 mL is a live microbial supplement formulated for marine and reef aquariums. It contains a complex blend of non-pathogenic aerobic and anaerobic microorganisms, including \u003cem\u003eRhodopseudomonas palustris\u003c\/em\u003e, a purple non-sulfur bacterium commonly abbreviated as PNSB.\u003c\/p\u003e\n\u003cp\u003eMicroBacter Purple M supports biological nutrient processing by encouraging microorganisms involved in nitrification, denitrification, organic-waste degradation, and nutrient remineralization. These microbes help process uneaten food, fish waste, detritus, organic carbon, ammonia, nitrite, nitrate, and phosphate as part of the aquarium’s biological ecosystem.\u003c\/p\u003e\n\u003cp\u003eThe product can be used in reef aquariums, marine fish systems, refugiums, live-rock displays, biological filters, and aquariums with porous bacterial media. Suitable surface area and consistent aquarium conditions help the microorganisms establish and remain active.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContains Purple Non-Sulfur Bacteria:\u003c\/strong\u003e Includes live \u003cem\u003eRhodopseudomonas palustris\u003c\/em\u003e microorganisms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Microbial Blend:\u003c\/strong\u003e Contains non-pathogenic aerobic and anaerobic microbes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports Nutrient Processing:\u003c\/strong\u003e Helps process organic carbon, ammonia, nitrite, nitrate, and phosphate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports Organic-Waste Breakdown:\u003c\/strong\u003e Assists with the digestion of uneaten food, waste, detritus, and other organic material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps Reduce Hydrogen Sulfide Production:\u003c\/strong\u003e Supports microbial conditions that may limit its formation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports Biological Diversity:\u003c\/strong\u003e Adds specialized microorganisms to marine aquarium microbial communities\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMay Improve Water Clarity:\u003c\/strong\u003e Supports the biological processing of dissolved and particulate organic waste\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine \u0026amp; Reef Formula:\u003c\/strong\u003e Intended for saltwater fish and reef aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Brightwell Aquatics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e MicroBacter Purple M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 500 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquivalent Size:\u003c\/strong\u003e Approximately 16.9 fl oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Live marine microbial supplement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Type:\u003c\/strong\u003e Marine and reef aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotable Organism:\u003c\/strong\u003e \u003cem\u003eRhodopseudomonas palustris\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Nutrient Dose:\u003c\/strong\u003e 1.25 mL per gallon weekly for the first two weeks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Nutrient Maintenance Dose:\u003c\/strong\u003e 5 mL per 50 gallons weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily Maintenance Option:\u003c\/strong\u003e 1 mL per 50 gallons daily\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest Used For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMarine fish-only aquariums\u003c\/li\u003e\n\u003cli\u003eSPS, LPS, soft-coral, and mixed reef aquariums\u003c\/li\u003e\n\u003cli\u003eSystems with elevated dissolved or particulate organic waste\u003c\/li\u003e\n\u003cli\u003eAquariums with measurable nitrate and phosphate\u003c\/li\u003e\n\u003cli\u003eRefugiums and sump-based filtration systems\u003c\/li\u003e\n\u003cli\u003eLive-rock and deep-substrate systems\u003c\/li\u003e\n\u003cli\u003ePorous biological filtration media\u003c\/li\u003e\n\u003cli\u003eSupporting microbial diversity\u003c\/li\u003e\n\u003cli\u003eEstablished aquariums undergoing changes in bioload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNormal Product Appearance\u003c\/h3\u003e\n\u003cp\u003eMicroBacter Purple M may appear cream, tan, or light brown in the bottle rather than purple. This is normal and does not indicate that the product is inactive.\u003c\/p\u003e\n\u003cp\u003eBrightwell maintains the \u003cem\u003eRhodopseudomonas palustris\u003c\/em\u003e culture in an oxygen-adapted growth form. Under these conditions, the microorganisms do not develop the strong purple pigmentation commonly associated with PNSB.\u003c\/p\u003e\n\u003cp\u003eAfter entering suitable low-oxygen and illuminated areas of the aquarium, the bacteria may naturally transition toward a more visibly pigmented form if environmental conditions support it.\u003c\/p\u003e\n\u003ch3\u003eHow MicroBacter Purple M Works\u003c\/h3\u003e\n\u003cp\u003eThe microorganisms in MicroBacter Purple M use multiple biological pathways to process nutrients and organic waste. Depending on oxygen, light, available carbon, and other environmental conditions, these microbes may participate in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNitrification\u003c\/li\u003e\n\u003cli\u003eDenitrification\u003c\/li\u003e\n\u003cli\u003eOrganic-waste degradation\u003c\/li\u003e\n\u003cli\u003eNutrient remineralization\u003c\/li\u003e\n\u003cli\u003eAssimilation of nitrogen and phosphorus\u003c\/li\u003e\n\u003cli\u003eConsumption of available organic carbon\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe product complements an established biological filter but does not replace suitable filter media, water movement, oxygenation, protein skimming, mechanical filtration, or routine maintenance.\u003c\/p\u003e\n\u003ch3\u003eMedium- to High-Nutrient Systems\u003c\/h3\u003e\n\u003cp\u003eFor aquariums with elevated nutrients, accumulated organic waste, or poor maintenance history, add:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1.25 mL per US gallon weekly, or more often if desired, for the first two weeks.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTurn off protein skimming and UV sterilization for 24 hours after each dose.\u003c\/p\u003e\n\u003cp\u003eAfter the first two weeks, switch to the low-nutrient maintenance dosage if water quality has noticeably improved. If improvement remains limited, Brightwell states that the initial dosage may be continued until conditions improve.\u003c\/p\u003e\n\u003ch3\u003eHigh-Nutrient Dosage Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Gallons:\u003c\/strong\u003e 12.5 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 Gallons:\u003c\/strong\u003e 25 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25 Gallons:\u003c\/strong\u003e 31.25 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40 Gallons:\u003c\/strong\u003e 50 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 Gallons:\u003c\/strong\u003e 62.5 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Gallons:\u003c\/strong\u003e Approximately 68.75 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75 Gallons:\u003c\/strong\u003e Approximately 93.75 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 Gallons:\u003c\/strong\u003e 125 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e125 Gallons:\u003c\/strong\u003e Approximately 156.25 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e150 Gallons:\u003c\/strong\u003e 187.5 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 Gallons:\u003c\/strong\u003e 250 mL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a relatively large initial dosage. Calculate from actual aquarium water volume after accounting for displacement from rock, sand, and equipment.\u003c\/p\u003e\n\u003ch3\u003eStable Low-Nutrient Systems\u003c\/h3\u003e\n\u003cp\u003eFor mature, stable, and well-maintained marine aquariums, add:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 mL per 50 US gallons once each week.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlternative maintenance schedules include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1 mL per 50 gallons daily\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 mL per 25 gallons every other day\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTurn off protein skimming and UV sterilization for 24 hours after dosing.\u003c\/p\u003e\n\u003cp\u003eAfter observing the aquarium’s response, the dosage or dosing frequency may be reduced by up to approximately 50% when a smaller amount is sufficient to maintain the desired conditions.\u003c\/p\u003e\n\u003ch3\u003eWeekly Maintenance Dosage Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Gallons:\u003c\/strong\u003e Approximately 1 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 Gallons:\u003c\/strong\u003e Approximately 2 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25 Gallons:\u003c\/strong\u003e Approximately 2.5 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40 Gallons:\u003c\/strong\u003e Approximately 4 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 Gallons:\u003c\/strong\u003e 5 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Gallons:\u003c\/strong\u003e Approximately 5.5 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75 Gallons:\u003c\/strong\u003e Approximately 7.5 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 Gallons:\u003c\/strong\u003e 10 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e125 Gallons:\u003c\/strong\u003e Approximately 12.5 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e150 Gallons:\u003c\/strong\u003e 15 mL weekly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 Gallons:\u003c\/strong\u003e 20 mL weekly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAfter Increasing Bioload or Changing Filtration\u003c\/h3\u003e\n\u003cp\u003eWhen livestock is added or the biological filtration system is changed, dose:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 mL per 50 gallons daily for one week.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAfter one week, resume the normal low-nutrient maintenance schedule.\u003c\/p\u003e\n\u003ch3\u003eDirections for Use\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eShake the bottle thoroughly before dosing.\u003c\/li\u003e\n\u003cli\u003eCalculate dosage using the aquarium’s estimated actual water volume.\u003c\/li\u003e\n\u003cli\u003eAdd the measured amount to an area of good circulation or to an external biological filtration chamber.\u003c\/li\u003e\n\u003cli\u003eDo not pour the product directly into a pump intake.\u003c\/li\u003e\n\u003cli\u003eTurn off protein skimming and UV sterilization for 24 hours.\u003c\/li\u003e\n\u003cli\u003eMaintain normal circulation and oxygenation.\u003c\/li\u003e\n\u003cli\u003eRestart all filtration equipment after the 24-hour period.\u003c\/li\u003e\n\u003cli\u003eTest nitrate, phosphate, ammonia, and nitrite as appropriate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eProtein Skimmer and UV Instructions\u003c\/h3\u003e\n\u003cp\u003eTurn off the protein skimmer and UV sterilizer for 24 hours after each dose. This gives the microorganisms time to disperse, attach to surfaces, and begin establishing before being removed or damaged by filtration equipment.\u003c\/p\u003e\n\u003cp\u003eKeep circulation pumps and normal water movement operating during this period. Maintain adequate aeration, especially in heavily stocked systems.\u003c\/p\u003e\n\u003cp\u003eUse a timer or reminder to ensure the skimmer and UV sterilizer are restarted.\u003c\/p\u003e\n\u003ch3\u003eSuitable Biological Surface Area\u003c\/h3\u003e\n\u003cp\u003eMicroBacter Purple M requires suitable surface area for microbial colonization. Porous rock, substrate, and biological filter media provide areas where the bacteria can establish.\u003c\/p\u003e\n\u003cp\u003eBrightwell recommends porous media such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrightwell Xport media\u003c\/li\u003e\n\u003cli\u003eMicroBacter Lattice\u003c\/li\u003e\n\u003cli\u003ePorous live rock\u003c\/li\u003e\n\u003cli\u003eBiological filter chambers\u003c\/li\u003e\n\u003cli\u003eRefugium media\u003c\/li\u003e\n\u003cli\u003eSuitable aquarium substrate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMechanical filtration should be maintained so that porous media does not become clogged with detritus.\u003c\/p\u003e\n\u003ch3\u003eUse with Reef BioFuel or Katalyst\u003c\/h3\u003e\n\u003cp\u003eBrightwell states that Reef BioFuel or Katalyst may be used to provide an organic carbon source during periods of rapid microbial growth.\u003c\/p\u003e\n\u003cp\u003eUse caution when combining bacteria and carbon supplements. Excess carbon may cause rapid bacterial reproduction, cloudy water, heavy biofilm growth, or reduced dissolved oxygen.\u003c\/p\u003e\n\u003cp\u003eBegin conservatively, maintain strong aeration, and monitor nitrate and phosphate closely.\u003c\/p\u003e\n\u003ch3\u003eCan It Be Used with Other MicroBacter Products?\u003c\/h3\u003e\n\u003cp\u003eMicroBacter Purple M may be compatible with other Brightwell biological products, but multiple bacterial products should not be added automatically or at full dosage without a clear purpose.\u003c\/p\u003e\n\u003cp\u003eDifferent formulas are intended for different aquarium stages and microbial goals. Introducing several concentrated bacterial cultures at once may make the aquarium’s response more difficult to predict.\u003c\/p\u003e\n\u003cp\u003eUse one primary bacterial program at a time unless Brightwell’s current directions specifically recommend combining the products.\u003c\/p\u003e\n\u003ch3\u003eDoes It Remove Nitrate and Phosphate?\u003c\/h3\u003e\n\u003cp\u003eMicroBacter Purple M supports microorganisms that consume or assimilate nitrate and phosphate during growth and nutrient remineralization.\u003c\/p\u003e\n\u003cp\u003eIt does not chemically bind nitrate or phosphate in the way that an adsorption media or liquid phosphate precipitant does. Results depend on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAvailable bacterial surface area\u003c\/li\u003e\n\u003cli\u003eAvailable organic carbon\u003c\/li\u003e\n\u003cli\u003eOxygen conditions\u003c\/li\u003e\n\u003cli\u003eWater temperature\u003c\/li\u003e\n\u003cli\u003eProtein skimming and nutrient export\u003c\/li\u003e\n\u003cli\u003eFeeding and livestock load\u003c\/li\u003e\n\u003cli\u003eInitial nutrient concentration\u003c\/li\u003e\n\u003cli\u003eOverall aquarium maturity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTest regularly and avoid assuming that one dose will immediately correct elevated nutrients.\u003c\/p\u003e\n\u003ch3\u003eDoes It Remove Ammonia and Nitrite?\u003c\/h3\u003e\n\u003cp\u003eBrightwell states that the microbial blend supports processes involving ammonia and nitrite. However, MicroBacter Purple M should not be treated as an emergency ammonia detoxifier or an instant aquarium-cycling product.\u003c\/p\u003e\n\u003cp\u003eIn an ammonia or nitrite emergency:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest accurately\u003c\/li\u003e\n\u003cli\u003eIncrease aeration\u003c\/li\u003e\n\u003cli\u003eReduce feeding\u003c\/li\u003e\n\u003cli\u003ePerform an appropriate water change\u003c\/li\u003e\n\u003cli\u003eUse a properly labeled conditioner when needed\u003c\/li\u003e\n\u003cli\u003eIdentify the cause of biological-filter failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHydrogen Sulfide Information\u003c\/h3\u003e\n\u003cp\u003eBrightwell states that MicroBacter Purple M may greatly reduce hydrogen sulfide production by supporting microbial processes that limit the conditions under which it develops.\u003c\/p\u003e\n\u003cp\u003eIt should not be marketed as an emergency hydrogen sulfide neutralizer. Disturbing an old anaerobic substrate bed can suddenly release trapped gases and organic waste.\u003c\/p\u003e\n\u003cp\u003eIf hydrogen sulfide is suspected:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDo not aggressively stir the entire substrate\u003c\/li\u003e\n\u003cli\u003eIncrease aeration immediately\u003c\/li\u003e\n\u003cli\u003eUse fresh activated carbon\u003c\/li\u003e\n\u003cli\u003ePerform controlled water changes\u003c\/li\u003e\n\u003cli\u003eInspect livestock for respiratory stress\u003c\/li\u003e\n\u003cli\u003eCorrect accumulated detritus and poor circulation gradually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCan It Improve Water Clarity?\u003c\/h3\u003e\n\u003cp\u003eBy supporting microbial processing of dissolved and particulate organic material, MicroBacter Purple M may help improve water clarity over time.\u003c\/p\u003e\n\u003cp\u003eIt is not an instant flocculating clarifier. Water clarity also depends on mechanical filtration, protein skimming, feeding, detritus removal, source-water quality, and algae control.\u003c\/p\u003e\n\u003ch3\u003eCan It Cause Cloudy Water?\u003c\/h3\u003e\n\u003cp\u003eHeavy bacterial activity may temporarily create hazy or cloudy water, particularly when the product is combined with an organic carbon source.\u003c\/p\u003e\n\u003cp\u003eIf cloudiness becomes severe:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStop dosing temporarily\u003c\/li\u003e\n\u003cli\u003eIncrease aeration and surface movement\u003c\/li\u003e\n\u003cli\u003eRestart the protein skimmer\u003c\/li\u003e\n\u003cli\u003eInstall clean mechanical filtration\u003c\/li\u003e\n\u003cli\u003eMonitor fish for rapid breathing\u003c\/li\u003e\n\u003cli\u003eResume at a reduced dose only after conditions stabilize\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStorage Instructions\u003c\/h3\u003e\n\u003cp\u003eRefrigeration is not required.\u003c\/p\u003e\n\u003cp\u003eBrightwell recommends storing MicroBacter Purple M at room temperature with exposure to light to help prolong activity and maximize shelf life. Avoid excessive heat and freezing.\u003c\/p\u003e\n\u003cp\u003eFor best results, use the product within one year of purchase.\u003c\/p\u003e\n\u003cp\u003eKeep the bottle tightly closed and prevent aquarium water from entering the container.\u003c\/p\u003e\n\u003ch3\u003eAvoid Contaminating the Bottle\u003c\/h3\u003e\n\u003cp\u003eWhen using a pipette or dosing tube below the aquarium waterline, rinse it thoroughly with purified water before placing it back into the bottle.\u003c\/p\u003e\n\u003cp\u003eIntroducing aquarium water into the bottle can contaminate the live culture and reduce product stability.\u003c\/p\u003e\n\u003ch3\u003eHow Much Does the 500 mL Bottle Treat?\u003c\/h3\u003e\n\u003cp\u003eAt the high-nutrient dosage of 1.25 mL per gallon:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 500 mL bottle treats approximately 400 cumulative gallons per application.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt the low-nutrient maintenance dosage of 5 mL per 50 gallons:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 500 mL bottle treats approximately 5,000 cumulative gallons.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eActual product life depends on aquarium size, nutrient condition, dosing frequency, and whether the high-dose introduction or low-dose maintenance schedule is used.\u003c\/p\u003e\n\u003ch3\u003eImportant Aquarium Care Note\u003c\/h3\u003e\n\u003cp\u003eMicroBacter Purple M is a biological supplement and should not replace routine aquarium maintenance.\u003c\/p\u003e\n\u003cp\u003eContinue:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAppropriate feeding\u003c\/li\u003e\n\u003cli\u003eProtein-skimmer maintenance\u003c\/li\u003e\n\u003cli\u003eMechanical-filter cleaning\u003c\/li\u003e\n\u003cli\u003eDetritus removal\u003c\/li\u003e\n\u003cli\u003eRegular water changes\u003c\/li\u003e\n\u003cli\u003eNitrate and phosphate testing\u003c\/li\u003e\n\u003cli\u003eMaintaining adequate circulation and oxygenation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAvoid aggressively reducing nitrate and phosphate to zero. Corals and other photosynthetic organisms require measurable nitrogen and phosphorus.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is MicroBacter Purple M?\u003c\/strong\u003e\u003cbr\u003eIt is a live marine microbial supplement containing aerobic and anaerobic microorganisms, including \u003cem\u003eRhodopseudomonas palustris\u003c\/em\u003e purple non-sulfur bacteria.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the liquid not purple?\u003c\/strong\u003e\u003cbr\u003eThe culture is maintained in an oxygen-adapted form that appears cream, tan, or light brown. This is normal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work only in low-oxygen areas?\u003c\/strong\u003e\u003cbr\u003eNo. The formula contains aerobic and anaerobic microorganisms and can function across different aquarium environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does it help process?\u003c\/strong\u003e\u003cbr\u003eBrightwell states that it supports the processing of organic carbon, ammonia, nitrite, nitrate, phosphate, food waste, excreta, and detritus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the high-nutrient dose?\u003c\/strong\u003e\u003cbr\u003eUse 1.25 mL per gallon weekly for the first two weeks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maintenance dose?\u003c\/strong\u003e\u003cbr\u003eUse 5 mL per 50 gallons weekly, 1 mL per 50 gallons daily, or 1 mL per 25 gallons every other day.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould the protein skimmer be turned off?\u003c\/strong\u003e\u003cbr\u003eYes. Brightwell recommends turning off protein skimming for 24 hours after dosing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould UV sterilization be turned off?\u003c\/strong\u003e\u003cbr\u003eYes. Turn off UV sterilization for 24 hours after dosing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould circulation pumps be turned off?\u003c\/strong\u003e\u003cbr\u003eNo. Maintain normal circulation and oxygenation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used with Reef BioFuel?\u003c\/strong\u003e\u003cbr\u003eYes, but combining bacteria with organic carbon can accelerate microbial growth. Begin conservatively and maintain strong aeration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it remove hydrogen sulfide?\u003c\/strong\u003e\u003cbr\u003eBrightwell states that it may reduce hydrogen sulfide production. It should not be treated as an emergency neutralizer for accumulated hydrogen sulfide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it reduce nitrate and phosphate?\u003c\/strong\u003e\u003cbr\u003eIt supports biological uptake and processing of these nutrients. Results depend on aquarium conditions and nutrient export.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it instantly cycle an aquarium?\u003c\/strong\u003e\u003cbr\u003eNo. It supports biological activity but should not be marketed as an instant-cycle guarantee.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it cause cloudy water?\u003c\/strong\u003e\u003cbr\u003eHeavy microbial growth may temporarily cloud the aquarium, especially when combined with organic carbon dosing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it require refrigeration?\u003c\/strong\u003e\u003cbr\u003eNo. Brightwell recommends room-temperature storage and states that light exposure can help prolong activity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow quickly should it be used?\u003c\/strong\u003e\u003cbr\u003eFor best results, use it within one year of purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it reef safe?\u003c\/strong\u003e\u003cbr\u003eIt is formulated for marine and reef aquariums and may be used with fish, corals, and invertebrates when dosed correctly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in freshwater aquariums?\u003c\/strong\u003e\u003cbr\u003eNo. MicroBacter Purple M is formulated specifically for marine and reef systems.\u003c\/p\u003e\n\u003ch3\u003eAvailable at Tropical Treasures Wyo\u003c\/h3\u003e\n\u003cp\u003eBrightwell Aquatics MicroBacter Purple M 500 mL provides a live blend of specialized marine microorganisms, including purple non-sulfur bacteria, to support nutrient processing, organic-waste degradation, and microbial diversity.\u003c\/p\u003e\n\u003cp\u003eVisit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Brightwell Aquatics MicroBacter Purple M, Reef BioFuel, biological filter media, marine test kits, protein-skimmer supplies, and reef aquarium products.\u003c\/p\u003e","brand":"Tropical Treasures Wyo LLC","offers":[{"title":"Default Title","offer_id":53005232046293,"sku":null,"price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4545\/8133\/files\/BRI60151-2T_1.png?v=1785017521","url":"https:\/\/tropicaltreasureswyo.com\/products\/brightwell-microbacter-purple-m-500ml","provider":"Tropical Treasures Wyo LLC","version":"1.0","type":"link"}