{"product_id":"fritz-maracyn-2","title":"Fritz Maracyn 2","description":"\u003cp\u003e\u003cstrong\u003eFritz Maracyn 2\u003c\/strong\u003e is a broad-spectrum minocycline antibiotic for ornamental fish, the gram-negative counterpart to original Maracyn. It targets the bacteria behind fin and tail rot, popeye, gill disease, dropsy, septicemia, and red streaking, and its packet form keeps dosing simple in freshwater or saltwater systems.\u003c\/p\u003e\n\u003cp\u003eBrowse our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/medication\"\u003emedication\u003c\/a\u003e lineup or the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fritz\"\u003eFritz range\u003c\/a\u003e.\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 Treats\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGram-negative bacterial infections:\u003c\/strong\u003e fin and tail rot, popeye, gill disease, dropsy, septicemia, and hemorrhagic red streaks on the body or fins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorbed through skin and fins:\u003c\/strong\u003e minocycline reaches the infection even when sick fish refuse food, which is when most antibiotic-laced feeding fails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and saltwater:\u003c\/strong\u003e safe in both systems when dosed as directed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairs with original Maracyn:\u003c\/strong\u003e for gram-positive infections like columnaris and bacterial gill disease, reach for \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fritz-maracyn\"\u003eFritz Maracyn\u003c\/a\u003e. The two can run together for broad-spectrum coverage when the culprit is unclear.\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;\"\u003eDosing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDay 1:\u003c\/strong\u003e add two packets per 10 gallons of water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDays 2 through 5:\u003c\/strong\u003e add one packet per 10 gallons every 24 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDay 6:\u003c\/strong\u003e perform a 25 percent water change. Repeat the course once if symptoms improved but have not fully cleared.\u003c\/li\u003e\n\u003cli\u003eRemove activated carbon during treatment, keep aeration strong, treat in a quarantine tank when possible, and always confirm with the directions on your box.\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;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px; background: #E3F2FD; width: 35%;\"\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px;\"\u003eFritz Maracyn 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px; background: #E3F2FD;\"\u003e\u003cstrong\u003eActive Ingredient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px;\"\u003eMinocycline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px; background: #E3F2FD;\"\u003e\u003cstrong\u003eTargets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px;\"\u003eGram-negative bacteria\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px; background: #E3F2FD;\"\u003e\u003cstrong\u003eDose\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px;\"\u003e2 packets per 10 gallons on day 1, then 1 packet per 10 gallons daily through day 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px; background: #E3F2FD;\"\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px;\"\u003e10 count box, 20 count box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px; background: #E3F2FD;\"\u003e\u003cstrong\u003eWater Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px;\"\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px; background: #E3F2FD;\"\u003e\u003cstrong\u003eMade In\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #BBDEFB; padding: 8px;\"\u003eUnited States\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\u003eCover gram-positive infections with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fritz-maracyn\"\u003eFritz Maracyn\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eRule out water quality first with a kit from \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\"\u003ewater testing\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eRecondition after treatment with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-prime-complete-concentrated-water-conditioner\"\u003eSeachem Prime\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\u003eHow do I know if I need Maracyn or Maracyn 2?\u003c\/strong\u003e\u003cbr\u003eFuzzy white patches, mouth fungus, and gill disease point to gram-positive bacteria, that is original Maracyn. Rotting fins, dropsy, bloating, and red streaking point to gram-negative, that is Maracyn 2. Unsure? Bring us a photo and we will help you choose.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the first dose doubled?\u003c\/strong\u003e\u003cbr\u003eThe loading dose brings the water column up to a therapeutic concentration fast, and the daily packets keep it there for the rest of the course.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it hurt my biofilter?\u003c\/strong\u003e\u003cbr\u003eMinocycline mainly targets gram-negative bacteria, which includes some nitrifiers, so watch ammonia and nitrite during treatment. Treating in a quarantine tank protects your display tank's cycle entirely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy fish stopped eating. Will it still work?\u003c\/strong\u003e\u003cbr\u003eYes. Maracyn 2 is absorbed through the skin and fins, so it reaches the infection even when the fish refuses food.\u003c\/p\u003e","brand":"Fritz","offers":[{"title":"10 Count","offer_id":48087324917979,"sku":"47001","price":15.19,"currency_code":"USD","in_stock":true},{"title":"20 Count","offer_id":48087324950747,"sku":"47002","price":21.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_022c1f36-01f0-4a03-82b8-b383de9e2c5a.png?v=1766759630","url":"https:\/\/squeakysaquatics.com\/products\/fritz-maracyn-2","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}