{"product_id":"black-aquarium-substrate-gravel-pottery-clay-aquascaping","title":"Black Aquarium Substrate Gravel, No-Rinse Pottery Clay for Fish Tank Decor and Planted Aquascaping, 7 lb Bag or 21 lb Three-Pack Options","description":"\u003ch2\u003eBlack Aquarium Substrate for Planted Layouts\u003c\/h2\u003e\u003cp\u003eCreate a dark foundation for your next aquascape with this black aquarium substrate gravel from Goodie Pet. Described in the original listing as no-rinse pottery clay for fish tank decor and plant support, it is available in a 7 lb option or a 21 lb set containing three 7 lb packs. Picture arranging your planting layout against a black substrate base as you bring your aquarium design together. Choose the amount for your tank's footprint and planned substrate depth, and follow the product's setup instructions.\u003c\/p\u003e\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e🖤 \u003cstrong\u003eBlack substrate base:\u003c\/strong\u003e A dark color choice for aquarium decor and aquascaping layouts.\u003c\/li\u003e\n\u003cli\u003e🌿 \u003cstrong\u003ePlant-support use:\u003c\/strong\u003e Listed for supporting planted arrangements; nutrient content is not specified.\u003c\/li\u003e\n\u003cli\u003e🪨 \u003cstrong\u003ePottery clay material:\u003c\/strong\u003e Identified in the original title as pottery clay aquarium gravel.\u003c\/li\u003e\n\u003cli\u003e💧 \u003cstrong\u003eListed as no-rinse:\u003c\/strong\u003e Follow the supplied package directions for preparation and filling.\u003c\/li\u003e\n\u003cli\u003e📦 \u003cstrong\u003eTwo quantity options:\u003c\/strong\u003e Choose 7 lb or 21 lb supplied as three 7 lb packs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eAquarium substrate gravel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eListed material\u003c\/th\u003e\n\u003ctd\u003ePottery clay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWeight options\u003c\/th\u003e\n\u003ctd\u003e7 lb; 21 lb (three 7 lb packs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eIntended uses\u003c\/th\u003e\n\u003ctd\u003eFish tank decoration and plant support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePreparation\u003c\/th\u003e\n\u003ctd\u003eListed as no-rinse; follow supplied directions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGrain size and coverage\u003c\/th\u003e\n\u003ctd\u003eNot specified in the available listing text\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNutrient content and water chemistry effects\u003c\/th\u003e\n\u003ctd\u003eNot specified in the available listing text\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLivestock and tank compatibility\u003c\/th\u003e\n\u003ctd\u003eVerify against manufacturer guidance before use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this black gravel suitable for my fish or shrimp aquarium?\u003c\/strong\u003e\u003cbr\u003eA: It is listed as aquarium substrate, but species-specific compatibility and effects on water chemistry are not provided. Check the package guidance against your livestock's needs before adding it; freshwater, saltwater and shrimp suitability should not be assumed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use this substrate for live aquarium plants?\u003c\/strong\u003e\u003cbr\u003eA: Plant support is a listed use. The available information does not establish nutrient levels, buffering performance or whether additional fertilization is needed. Match your substrate plan to the needs of your selected plants.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is aquarium substrate a useful gift for an aquascaping enthusiast?\u003c\/strong\u003e\u003cbr\u003eA: It can be a practical birthday or holiday gift when you know the recipient wants black substrate and has confirmed compatibility. Ask about their tank dimensions, planned layout and required amount before selecting 7 lb or 21 lb.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Do I need to rinse it, and how much substrate should I buy?\u003c\/strong\u003e\u003cbr\u003eA: The original listing describes it as no-rinse; follow the package instructions. The amount needed depends on the tank footprint, desired depth and substrate density. Coverage data is not provided, so a specific tank-size recommendation cannot be established from weight alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Are plants, tools or aquarium accessories included?\u003c\/strong\u003e\u003cbr\u003eA: The listed variants identify substrate by weight. Plants, aquascaping tools and other accessories are not specified as included. The 21 lb option is explicitly listed as three 7 lb packs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does this substrate have STEM or educational features?\u003c\/strong\u003e\u003cbr\u003eA: It is not listed as a STEM kit and includes no specified educational materials. An adult-supervised aquarium project can provide opportunities to observe plant growth and habitat design, but those activities are separate from the product's stated features.\u003c\/p\u003e\u003ch2\u003eProduct Images\u003c\/h2\u003e\u003cimg src=\"https:\/\/img.kwcdn.com\/product\/fancy\/f120a4e2-1562-40ae-a634-9921893599e5.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/img.kwcdn.com\/product\/fancy\/3cbd86eb-c4f6-4c64-ab66-348d5f052565.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/img.kwcdn.com\/product\/fancy\/5c857ed8-0826-4de6-97a7-43270a5a6ecd.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/img.kwcdn.com\/product\/fancy\/97a829fd-9402-4090-a05b-270e0c845bf4.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/img.kwcdn.com\/product\/fancy\/9cd9347f-35d4-4b54-b7a8-0cc5a6cb55a8.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/img.kwcdn.com\/product\/fancy\/ff5fe6c4-2af1-47e1-9af3-d577d250b56e.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/img.kwcdn.com\/product\/fancy\/2f61e14f-445f-4685-adee-e9fd37556eee.jpg\"\u003e\u003ch2\u003eFast US Shipping\u003c\/h2\u003e\u003cp\u003eShips from US warehouse, free delivery 2-7 business days\u003c\/p\u003e","brand":"Goodie Pet","offers":[{"title":"21lbs(7lbs\/pack*3)","offer_id":50601303376112,"sku":null,"price":123.99,"currency_code":"USD","in_stock":true},{"title":"7 lbs","offer_id":50601303408880,"sku":null,"price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0308\/0176\/files\/3cbd86eb-c4f6-4c64-ab66-348d5f052565.jpg?v=1791728356","url":"https:\/\/goodiepet.com\/products\/black-aquarium-substrate-gravel-pottery-clay-aquascaping","provider":"Goodie Pet","version":"1.0","type":"link"}