{"product_id":"fritz-mardel-maracyn-oxy-antifungal-treatment","title":"Fritz Mardel Maracyn Oxy — Oxidizing Antifungal Fish Treatment","description":"\u003cp\u003e\u003cstrong\u003eMechanism: Oxidizing antifungal formula\u003c\/strong\u003e (non-antibiotic)\u003c\/p\u003e\n\n\u003cp\u003eMaracyn Oxy acts through an oxidizing mechanism — releasing active oxygen species that disrupt fungal cell walls and kill external fungal pathogens on contact. This approach is entirely distinct from antibiotic-based Maracyn treatments: it does not contribute to antibiotic resistance and is a sound first choice when antibiotic treatment is not indicated.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Treats\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003ePathogen \/ Condition\u003c\/th\u003e\n      \u003cth\u003ePresentation\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\n\u003cem\u003eSaprolegnia\u003c\/em\u003e spp.\u003c\/td\u003e\n      \u003ctd\u003eCotton-like white or gray tufts on body, fins, or wounds — \"cotton wool disease\"\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\n\u003cem\u003eAchyla\u003c\/em\u003e spp.\u003c\/td\u003e\n      \u003ctd\u003eBranching fungal filaments on damaged or necrotic tissue; similar appearance to Saprolegnia\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFungal lesions on fish eggs\u003c\/td\u003e\n      \u003ctd\u003eWhite or gray fuzzy coating spreading across spawned eggs; highly effective for egg fungus in breeding setups\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSecondary bacterial fin rot (external)\u003c\/td\u003e\n      \u003ctd\u003eFin deterioration associated with fungal infection or surface tissue damage\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat Maracyn Oxy Does NOT Treat\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal fungal infections\u003c\/strong\u003e — this formula works on external surfaces only\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGram-negative bacterial infections\u003c\/strong\u003e — use Fritz Maracyn 2 (minocycline) for systemic or deep gram-negative infections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGram-positive bacterial infections\u003c\/strong\u003e — use Fritz Maracyn (erythromycin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParasites\u003c\/strong\u003e (ich, velvet, flukes, internal worms) — no antiparasitic activity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant: Fungal Infections Are Almost Always Secondary\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eSaprolegnia\u003c\/em\u003e and \u003cem\u003eAchyla\u003c\/em\u003e are opportunistic water molds — they colonize damaged, stressed, or immunocompromised tissue, not healthy intact fish. A fungal infection is a symptom, not a root cause. Identify and address the underlying issue (physical injury, fin nipping, bacterial lesion, infertile eggs) or the infection will return after treatment ends.\u003c\/p\u003e\n\n\u003ch3\u003eTreatment Protocol\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove activated carbon before treatment — oxidizing agents are rapidly neutralized by carbon media\u003c\/li\u003e\n  \u003cli\u003e2.5 mL per 10 US gallons (38 L), once daily for 5 consecutive days\u003c\/li\u003e\n  \u003cli\u003ePerform a 25% water change before retreating if a second course is needed\u003c\/li\u003e\n  \u003cli\u003eSafe for biological filtration at recommended doses\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"YoCamron's Aquatics","offers":[{"title":"4 oz","offer_id":50095451406573,"sku":"FRITZ-MARACYNOXY-4OZ","price":10.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/1032\/8813\/files\/Fritz_Maracyn_Oxy_4oz.png?v=1781975376","url":"https:\/\/yocamronsaquatics.com\/products\/fritz-mardel-maracyn-oxy-antifungal-treatment","provider":"YoCamron's Exotics","version":"1.0","type":"link"}