{"product_id":"brightwell-florinbacter-live-bacteria-freshwater-cycling","title":"Brightwell FlorinBacter","description":"\u003cp\u003e\u003cstrong\u003eBrightwell FlorinBacter\u003c\/strong\u003e is a live nitrifying and heterotrophic bacterial blend that builds and maintains the biological filter in planted freshwater aquariums. Use it to cycle a new tank in days instead of weeks, to rescue a tank after a deep filter clean or major water change, or as a routine boost to keep ammonia and nitrite at zero. Browse all \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\"\u003eaquarium additives\u003c\/a\u003e or pair it with \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\"\u003elive aquarium plants\u003c\/a\u003e for the best results.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eWhat It Does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycles a new tank fast.\u003c\/strong\u003e Live bacteria seed the filter media so your first fish can go in safely in days, not weeks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestores filtration after a clean.\u003c\/strong\u003e If you swapped media, scrubbed canister filters, or did a heavy water change, dose to keep ammonia and nitrite under control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents new-tank syndrome.\u003c\/strong\u003e Drastically reduces fish loss from cycling spikes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant- and shrimp-safe.\u003c\/strong\u003e No copper or harsh chemicals. Safe for Caridina and Neocaridina.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStacks with FlorinBacter Clean.\u003c\/strong\u003e FlorinBacter handles the ammonia → nitrite → nitrate pathway; \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/brightwell-florinbacter-clean-bacteria-planted-freshwater\"\u003eFlorinBacter Clean\u003c\/a\u003e targets the organic detritus that builds up between water changes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eHow to Dose\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eShake well\u003c\/strong\u003e before each use, the bacteria settle out of suspension.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew tank cycling:\u003c\/strong\u003e 5 mL per 10 gallons daily for the first week, then weekly thereafter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExisting tank maintenance:\u003c\/strong\u003e 5 mL per 25 gallons weekly, ideally after water changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter a filter cleaning or major change:\u003c\/strong\u003e 5 mL per 10 gallons for 3 days to re-seat the biofilter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurn off UV sterilizers and pause chemical filtration\u003c\/strong\u003e for the first 24 hours after dosing so the bacteria can attach to media.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eChoose Your Size\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:560px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#E3F2FD;\"\u003e\n\u003cth style=\"border:1px solid #BBDEFB;padding:8px 10px;text-align:left;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"border:1px solid #BBDEFB;padding:8px 10px;text-align:left;\"\u003eCycles\u003c\/th\u003e\n\u003cth style=\"border:1px solid #BBDEFB;padding:8px 10px;text-align:left;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003e125 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eCycles one ~20 gal tank, or 6 months of routine dosing on a 25 gal\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eNano and mid-size planted tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003e250 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eCycles one ~50 gal tank, or a year of routine dosing on a 25 gal\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eLarger displays and multi-tank setups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:520px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eBrightwell Aquatics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eFlorin (freshwater) bacterial culture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eCycles tanks and maintains biological filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eTank type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eFreshwater (planted and community)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eShrimp safe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eYes, including Caridina and Neocaridina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eDaily during cycling, weekly for maintenance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003ePickup\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eIn-store pickup only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/brightwell-florinbacter-clean-bacteria-planted-freshwater\"\u003eBrightwell FlorinBacter Clean\u003c\/a\u003e — pair to clear sludge and organic waste\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/aquaforest-af-water-conditioner\"\u003eAquaforest Water Conditioner\u003c\/a\u003e — detoxify tap water before each water change\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\"\u003eLive aquarium plants\u003c\/a\u003e — nature's nutrient export, works with the bacteria\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\"\u003eAll freshwater additives\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between FlorinBacter and FlorinBacter Clean?\u003c\/strong\u003e\u003cbr\u003eFlorinBacter is the bacterial culture that cycles your tank and maintains the ammonia-and-nitrite biofilter. FlorinBacter Clean is a different blend that breaks down organic detritus, fish waste, and decaying plant matter. They complement each other and many planted-tank keepers run both.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it during fishless cycling?\u003c\/strong\u003e\u003cbr\u003eYes, that is exactly when it shines. Dose at the cycling rate while adding a small ammonia source, and the bacteria will colonize your filter media in days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it shrimp safe?\u003c\/strong\u003e\u003cbr\u003eYes. No copper, no antibiotics, safe for Neocaridina davidi, Caridina cantonensis, and other sensitive freshwater inverts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it expire?\u003c\/strong\u003e\u003cbr\u003eLive bacterial products are time-sensitive. Use within the date on the bottle and store away from heat and direct sun. Refrigeration extends shelf life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work in saltwater?\u003c\/strong\u003e\u003cbr\u003eNo, this is the freshwater (Florin) line. For reef and marine tanks, use Brightwell MicroBacter products instead.\u003c\/p\u003e","brand":"Brightwell Aquatics","offers":[{"title":"125 ml","offer_id":48297838182619,"sku":"FNB125","price":9.22,"currency_code":"USD","in_stock":true},{"title":"250 ml","offer_id":48297838215387,"sku":"01454","price":12.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_7723a111-ff3d-4d4d-b24d-37d1f14a4ad4.jpg?v=1771946772","url":"https:\/\/squeakysaquatics.com\/products\/brightwell-florinbacter-live-bacteria-freshwater-cycling","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}