{"product_id":"fish-penicillin-250mg-100-tablets-fish-antibiotics","title":"Fish Penicillin 250mg 100 Tablets Fish Antibiotics","description":"\u003ch2\u003eFish Pen 250 (Penicillin) Fish Antibiotics 250mg Tablets – 100 Count\u003c\/h2\u003e\n\n\u003cp\u003e\nFish Pen 250 is a penicillin-based fish antibiotic designed to support the treatment of bacterial infections in aquarium fish. The 250mg strength allows for more precise dosing, making it ideal for smaller aquariums and sensitive fish species.\n\u003c\/p\u003e\n\n\u003cp\u003e\nPenicillin is commonly used in fish care to manage gram-positive bacterial infections and is most effective during early stages of disease. It helps control infection spread and supports recovery in affected fish.\n\u003c\/p\u003e\n\n\u003ch3\u003eCommon Uses in Aquarium Fish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEarly-stage bacterial infections\u003c\/li\u003e\n\u003cli\u003eFin and tail rot (early phase)\u003c\/li\u003e\n\u003cli\u003eSkin lesions and ulcers\u003c\/li\u003e\n\u003cli\u003eGill infections\u003c\/li\u003e\n\u003cli\u003eGram-positive bacterial infections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDosage \u0026amp; Directions\u003c\/h3\u003e\n\u003cp\u003e\nUse one tablet (250mg) per 10 gallons of aquarium water. Crush and dissolve the tablet before adding to the tank. Repeat every 24 hours for 5–7 days depending on severity.\n\u003c\/p\u003e\n\n\u003ch3\u003eImportant Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor aquarium and ornamental fish use only\u003c\/li\u003e\n\u003cli\u003eNot for fish intended for human consumption\u003c\/li\u003e\n\u003cli\u003eBest suited for early infection stages\u003c\/li\u003e\n\u003cli\u003eMonitor fish condition during treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eStorage Instructions\u003c\/h3\u003e\n\u003cp\u003e\nStore in a cool, dry place away from moisture and direct sunlight. Keep container tightly sealed.\n\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does Fish Pen 250 treat?\u003c\/strong\u003e\u003cbr\u003e\nIt treats gram-positive bacterial infections such as early fin rot, skin infections, and mild bacterial conditions.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy choose 250mg instead of 500mg?\u003c\/strong\u003e\u003cbr\u003e\n250mg allows more precise dosing, especially for smaller tanks or sensitive fish species.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I administer it?\u003c\/strong\u003e\u003cbr\u003e\nCrush and dissolve the tablet in aquarium water for treatment.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs it safe for all aquariums?\u003c\/strong\u003e\u003cbr\u003e\nYes, when used correctly, it is suitable for freshwater and saltwater aquariums.\n\u003c\/p\u003e","brand":"Fish Antibiotic","offers":[{"title":"Default Title","offer_id":47525473026211,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/4928\/0419\/files\/ChatGPTImage6dec.2025_19_53_09.png?v=1775133147","url":"https:\/\/fishantibiotic.com\/products\/fish-penicillin-250mg-100-tablets-fish-antibiotics","provider":"Fish Antibiotic","version":"1.0","type":"link"}