{"product_id":"ecoreef-cemala-coral-substrate-coarse","title":"TMC EcoReef Cemala Coral Substrate - Coarse","description":"\u003cp id=\"p-rc_64acc8f1e694f3dd-25\"\u003e\u003cspan class=\"citation-35 citation-end-35\"\u003eThe EcoReef Cemala Coral Substrate – Coarse is a premium, responsibly sourced natural substrate engineered specifically for marine, reef, and high-pH freshwater aquariums.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-34 citation-end-34\"\u003eHarvested from long-buried fossilized coral reefs without harming contemporary marine environments, it delivers exceptional ecological performance while establishing a striking, natural aesthetic.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3\u003eShort Description \u0026amp; Highlights\u003c\/h3\u003e\n\u003cp id=\"p-rc_64acc8f1e694f3dd-26\"\u003e\u003cspan class=\"citation-33 citation-end-33\"\u003eDesigned with an optimal coarse grain size, the EcoReef Cemala Substrate encourages robust water circulation throughout the bed, preventing detritus stagnation and supporting optimal biological filtration.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-32 citation-end-32\"\u003eIts natural calcium carbonate composition actively buffers pH levels, ensuring stable water chemistry that supports coral growth and marine livestock health.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e It serves as a reliable, eco-friendly foundation for both novice and advanced aquarists building a stable aquatic ecosystem. \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Product Highlights:\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eMaterial Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% Responsibly Sourced Fossilized Coral Substrate\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eGrain Size\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCoarse (Approx. 2–3 mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePrimary Application\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMarine, Reef Aquariums, and High-pH Freshwater\/African Cichlid Tanks\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eWater Chemistry Impact\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNaturally buffers pH and increases carbonate hardness (KH)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eFiltration Benefit\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnhances water flow through the sand bed to maximize beneficial bacterial colonization\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eSustainability\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEco-friendly alternative harvested from ancient land deposits\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDetailed Beginner Care Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003e1. Tank Placement \u0026amp; Purpose\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe coarse grain structure of this substrate makes it an excellent choice for general reef display tanks, fish-only marine systems, or hard-water freshwater setups like African cichlid aquariums. Beginners will appreciate how the coarse texture minimizes cloudiness during water agitation compared to ultra-fine sand powders.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e2. Water Chemistry \u0026amp; Buffering\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBecause it is rich in natural calcium carbonate, this substrate naturally helps stabilize and maintain proper marine pH levels (typically 8.1 to 8.4) and carbonate hardness. For beginners, this offers an extra layer of chemical stability, protecting against sudden, dangerous drops in pH.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e3. Preparation \u0026amp; Maintenance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eRinse the substrate thoroughly in clean, freshwater outside of the aquarium before installation to remove any residual fossil dust from transport. When placing it into the tank, add it gently to avoid scratching the glass. For ongoing maintenance, the coarse grading allows light siphoning of the upper layers during routine water changes without accidentally vacuuming away the entire bed.\u003c\/p\u003e","brand":"Tropical Marine Center","offers":[{"title":"Default Title","offer_id":57144541839700,"sku":"1453","price":29.39,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1052\/5828\/7444\/files\/EcoReefCemalaCoralSubstrate_d05ca147-1db7-4ebc-9c62-5db897764b0c.webp?v=1789413781","url":"https:\/\/www.tropicalmarineaquatic.com\/products\/ecoreef-cemala-coral-substrate-coarse","provider":"Tropical Marine Aquatic","version":"1.0","type":"link"}