{"product_id":"fish-pen-penicillin-500mg-60-tablets-fish-antibiotics","title":"Fish Pen Penicillin 500mg 60 Tablets Fish Antibiotics","description":"\u003ch2\u003eFish Pen 500 (Penicillin) Fish Antibiotics 500mg Tablets – 60 Count\u003c\/h2\u003e\n\n\u003cp\u003e\nFish Pen 500 is a trusted fish antibiotics solution formulated with penicillin, designed to support aquarium fish affected by common bacterial infections. The 60 count size is ideal for extended treatments, larger aquariums, or multi-tank use.\n\u003c\/p\u003e\n\n\u003cp\u003e\nPenicillin is widely used in aquatic care for its effectiveness against gram-positive bacteria. It is commonly selected when fish show visible symptoms such as fin deterioration, mouth infections, or open sores.\n\u003c\/p\u003e\n\n\u003ch3\u003eCommon Uses in Aquarium Fish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFin and tail rot\u003c\/li\u003e\n\u003cli\u003eMouth rot (cotton mouth)\u003c\/li\u003e\n\u003cli\u003eBody ulcers and sores\u003c\/li\u003e\n\u003cli\u003eExternal bacterial infections\u003c\/li\u003e\n\u003cli\u003eEarly and moderate bacterial conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDosage \u0026amp; Directions\u003c\/h3\u003e\n\u003cp\u003e\nUse one tablet (500mg) per 10 gallons of aquarium water. Crush the tablet and dissolve it in water before adding it to the tank. Repeat every 24 hours for 7–10 days depending on severity.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFor optimal results, remove activated carbon filtration and perform partial water changes during treatment.\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\u003eMaintain stable water parameters during treatment\u003c\/li\u003e\n\u003cli\u003eObserve fish behavior and response to 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 sunlight. Keep tightly sealed when not in use.\n\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does Fish Pen 500 treat?\u003c\/strong\u003e\u003cbr\u003e\nIt is commonly used for bacterial infections such as fin rot, mouth rot, and body ulcers in aquarium fish.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow is this product used?\u003c\/strong\u003e\u003cbr\u003e\nCrush the tablet and dissolve it in aquarium water before adding it to the tank.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen should I use the 60 count size?\u003c\/strong\u003e\u003cbr\u003e\nThis size is ideal for larger aquariums, extended treatment durations, or maintaining stock for multiple uses.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan it be used in all aquarium types?\u003c\/strong\u003e\u003cbr\u003e\nYes, it is suitable for both freshwater and saltwater aquariums.\n\u003c\/p\u003e","brand":"Fish Antibiotic","offers":[{"title":"Default Title","offer_id":47525474566307,"sku":"AS-022-AF","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/4928\/0419\/files\/Pen500mg60.png?v=1775663461","url":"https:\/\/fishantibiotic.com\/products\/fish-pen-penicillin-500mg-60-tablets-fish-antibiotics","provider":"Fish Antibiotic","version":"1.0","type":"link"}