{"product_id":"aquasonic-formalin-malachite-solution","title":"Aquasonic Formalin Malachite Solution","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e\n\u003cp\u003eAquasonic Formalin Malachite Solution is an Australian treatment for external protozoa and fungus on ornamental freshwater fish. It contains formaldehyde (formalin) and malachite green, and it is copper-free.\u003c\/p\u003e\n\u003cp\u003eIt is used for white spot (ich), velvet, Costia, Trichodina, Chilodonella, cloudy or slimy skin, and fungal growth.\u003c\/p\u003e\n\u003cp\u003eDo not use with shrimp, snails, crabs, clams, corals, or other invertebrates, or in reef tanks. Formalin lowers dissolved oxygen, so keep aeration strong for the whole treatment. Malachite green stains skin, clothing, floors, and silicone. For ornamental fish only. Do not use on fish intended for human consumption. Keep out of reach of children.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFormaldehyde 37% and malachite green\u003c\/li\u003e\n\u003cli\u003eCopper-free\u003c\/li\u003e\n\u003cli\u003eDose: 5 mL per 20 litres, once a day for 4 days\u003c\/li\u003e\n\u003cli\u003eMade in Australia\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWater and system compatibility\u003c\/h3\u003e\n\u003cp\u003eFreshwater only, including tropical and coldwater fish-only tanks. Do not use in marine or reef tanks, or in tanks with invertebrates.\u003c\/p\u003e\n\u003cp\u003eNeed to work out your tank's litreage? Use our \u003ca href=\"\/pages\/volume-calculator\"\u003evolume calculator\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003ePack sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eOne daily dose covers\u003c\/th\u003e\n\u003cth\u003eFull 4-day course covers\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 ml\u003c\/td\u003e\n\u003ctd\u003e400 litres\u003c\/td\u003e\n\u003ctd\u003e100 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 ml\u003c\/td\u003e\n\u003ctd\u003e1,000 litres\u003c\/td\u003e\n\u003ctd\u003e250 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eDirections\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eRemove shrimp, snails, crabs, clams, and other invertebrates.\u003c\/li\u003e\n\u003cli\u003eRemove activated carbon and chemical filter resins. Turn off UV sterilisers and ozone. Keep aeration strong.\u003c\/li\u003e\n\u003cli\u003eAdd 5 mL per 20 litres once a day for 4 days.\u003c\/li\u003e\n\u003cli\u003eLoaches and other scaleless fish, tetras, and fry: use a lower dose, or treat in a quarantine tank and watch them.\u003c\/li\u003e\n\u003cli\u003eYou can raise the temperature by 2°C to 3°C during treatment so more of the parasite is free-swimming.\u003c\/li\u003e\n\u003cli\u003eOn day 5, change 50% of the water, then add fresh activated carbon. The water may have a green tint until the carbon clears it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cem\u003eAlways follow directions on product packaging.\u003c\/em\u003e\u003c\/p\u003e","brand":"Aquasonic","offers":[{"title":"100ml","offer_id":56664632983857,"sku":null,"price":12.95,"currency_code":"AUD","in_stock":false},{"title":"250ml","offer_id":56664633016625,"sku":null,"price":19.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/6066\/3601\/files\/aquasonic_formalinmalachite.png?v=1791426843","url":"https:\/\/www.williamstownaquarium.com.au\/products\/aquasonic-formalin-malachite-solution","provider":"Williamstown Aquarium","version":"1.0","type":"link"}