{"product_id":"elementals-trace-cu-copper-250ml-fm-ecu-95","title":"ELEMENTALS TRACE Cu - Copper 250ml","description":"\u003cp\u003eFauna Marin ELEMENTALS TRACE Cu is a high-purity copper solution for correcting copper deficiencies in reef aquariums, intended for experienced reefers dosing to a confirmed lab result.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDose: 1ml per 100L (26 US gal) raises copper by approximately 1µg\/L\u003c\/li\u003e\n\u003cli\u003eMaximum daily increase: 2µg copper\/L per day\u003c\/li\u003e\n\u003cli\u003eTarget range: 2-5µg\/L; readings up to 10µg\/L are generally tolerated since most copper in a healthy system is in non-bioavailable forms\u003c\/li\u003e\n\u003cli\u003eFormat: 250ml bottle\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCopper is essential to numerous enzyme systems in corals and invertebrates, but it's also one of Fauna Marin's \"dynamic elements\" — its toxicity threshold shifts depending on the balance of zinc, vanadium, nickel, and molybdenum alongside it. Above roughly 20µg\/L, copper starts causing Acropora tissue to brighten\/bleach and can be lethal to clams, mollusks, and shrimp. Most Fauna Marin supply systems (including the Balling Light Trace 2 solution) already carry enough copper for normal needs, so this bottle is meant for confirmed shortfalls, not routine dosing.\u003c\/p\u003e\u003cp\u003eIncludes: 1x 250ml bottle.\u003c\/p\u003e\u003cp\u003eCompatible with: dose via the Fauna Marin DIY Doser adapter; only dose after a Fauna Marin ICP test confirms low copper, and monitor invertebrates closely given copper's narrow safety margin.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Default Title","offer_id":46000586260524,"sku":"FM-ECU-95","price":28.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/4382\/5196\/files\/elementals_trace_cu.png?v=1787190001","url":"https:\/\/www.marineconceptsupply.com\/products\/elementals-trace-cu-copper-250ml-fm-ecu-95","provider":"Marine Concept Supply","version":"1.0","type":"link"}