{"product_id":"seachem-laboratories-onyx-gravel","title":"Onyx Gravel","description":"\u003ch1\u003eSeachem Laboratories Onyx Gravel\u003c\/h1\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eSeachem Laboratories Features Premium natural substrate for the aquarium Ideal for Tanganyikan Cichlids Rich in carbonates Overview Onyx™ is a specially fracted natural substrate for the aquarium. Onyx™ is suitable for any marine or freshwater environments and is ideally suited for Cichlid environments. Onyx™ is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels or sands such as Onyx Sand™. Onyx™ is not chemically coated or treated but does have a slight buffering capacity. Onyx™ Mineral Composition Units=mg\/kg, source: Plasma Emission Spectrometer, EPA Method 6010, Univ. of Georgia Chemical Analysis Lab Al Ba Ca Co Cr Cu Fe K Mg Mn Na Ni V Zn 822 5 197,500 4 10 4 2,846 417 115,400 43 135 7 8 23 Set-up Although it is pre-washed, because Onyx™ is a natural product, it may become dusty in transit and require rinsing before use to remove any.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOnyx Gravel supports aquarium filtration and water-quality management\u003c\/li\u003e\n\u003cli\u003eHelps improve clarity by targeting the media function listed in the product name\u003c\/li\u003e\n\u003cli\u003eSuitable for compatible filter media bags, reactors, or filter chambers\u003c\/li\u003e\n\u003cli\u003eUseful for routine maintenance or media replacement schedules\u003c\/li\u003e\n\u003cli\u003eSupports freshwater, marine, or reef systems as directed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Seachem Laboratories\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Seachem Laboratories Onyx Gravel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Filter Media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 15.4 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e SL-MEDIA-0001948\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 000116370509\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seachem Laboratories","offers":[{"title":"15.4 lb","offer_id":51821614956865,"sku":"SL-MEDIA-0001948","price":33.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/8968\/2497\/files\/media_81217aa9-51cc-4a34-8608-4b5d94d5db10.jpg?v=1780898371","url":"https:\/\/lawnandpets.com\/es\/products\/seachem-laboratories-onyx-gravel","provider":"Lawn and Pets","version":"1.0","type":"link"}