{"product_id":"crystal-blue-copper-sulfate-algaecide-5-lb-granular-algae-control-for-large-ponds","title":"Crystal Blue Copper Sulfate Algaecide – 5 lb Granular Algae Control for Large Ponds","description":"\u003cp\u003eCrystal Blue Copper Sulfate Algaecide is a granular copper sulfate pentahydrate designed for larger water bodies. This 99 percent pure granule targets actively growing algae and helps manage filamentous and string algae in ponds, lakes, or other large waters.\u003c\/p\u003e\u003ch3\u003eWhat to expect\u003c\/h3\u003e\u003cp\u003eThe granular formulation enables targeted action on thick algae mats while allowing you to monitor overall water health during treatment. Results may vary with conditions and timing.\u003c\/p\u003e\u003ch3\u003eKey considerations\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUse on actively growing algae when water temperature is above 60F (15.6C).\u003c\/li\u003e\n\u003cli\u003eBest applied on top of dense mats; avoid treating too large an area at once to protect oxygen levels for fish.\u003c\/li\u003e\n\u003cli\u003e5 lb bag of granular copper sulfate is intended for large bodies of water, not small decorative ponds, water features, or pools.\u003c\/li\u003e\n\u003cli\u003eDo not use in water containing koi, goldfish, trout, or grass carp.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat you get and how to use it safely\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e5 lb granular copper sulfate pentahydrate for pond algae control.\u003c\/li\u003e\n\u003cli\u003eClear guidance on application with attention to fish safety and water conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCrystal Blue aims to support responsible algae management in larger water systems while prioritizing ecosystem balance and user safety. Follow local regulations and test water conditions when applying.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What water bodies is Crystal Blue Copper Sulfate Algaecide designed for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for large ponds and lakes; not intended for small decorative ponds or pools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are there fish safety considerations when using this product?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Do not use where koi, goldfish, trout, or grass carp are present; follow dosage guidelines to avoid oxygen depletion.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Crystal Blue","offers":[{"title":"Default Title","offer_id":48213479817460,"sku":"B000RUN0T6","price":46.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/6652\/0820\/files\/crystal-blue-copper-sulfate-5lb-bag.jpg?v=1778473741","url":"https:\/\/www.cerapatiogarden.com\/products\/crystal-blue-copper-sulfate-algaecide-5-lb-granular-algae-control-for-large-ponds","provider":"Cera Garden","version":"1.0","type":"link"}