{"product_id":"red-sea-reef-base-10kg","title":"Red Sea Reef Base 10kg","description":"\u003cp\u003e\u003cstrong\u003eNatural aragonite sand that buffers reef water as it settles.\u003c\/strong\u003e Red Sea Reef Base is an oolitic aragonite substrate, formed by natural precipitation and collected from a renewable source — the same calcium-carbonate sand chemistry reef keepers have relied on for decades to help hold pH and alkalinity steady in a marine system. It's sold in a 10 kg bag, in Pink or White.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural aragonite\u003c\/strong\u003e — helps maintain a stable pH around 8.2–8.3 and supports alkalinity (KH) stability as it dissolves slowly over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessed, not just dredged\u003c\/strong\u003e — exposed to air and UV light, screened, then mechanically washed twice for a cleaner bag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo tones\u003c\/strong\u003e — Pink gives the classic warm reef-flat look; White gives a brighter, more neutral sand bed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 kg bag\u003c\/strong\u003e — sized to build up a display bed gradually or to top up an existing one.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eOolitic aragonite (calcium carbonate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSource\u003c\/td\u003e\n\u003ctd\u003eNatural precipitation, renewable source\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e10 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColours\u003c\/td\u003e\n\u003ctd\u003ePink, White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH support\u003c\/td\u003e\n\u003ctd\u003eHelps maintain approximately pH 8.2–8.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessing\u003c\/td\u003e\n\u003ctd\u003eAir and UV exposed, screened, double washed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWill it fit my tank?\u003c\/h3\u003e\u003cp\u003eRed Sea doesn't publish an exact coverage figure — how far a 10 kg bag goes depends entirely on the footprint of your tank and how deep a bed you want. As a starting point, weigh out one bag over your sump or a spare container to see the volume it makes before committing it to the display, and buy a second bag rather than guess short on a display you'll only fill once.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuited to marine fish-only and reef systems as a display or sump substrate. Not intended as a freshwater substrate, and not a substitute for live rock or bacterial supplementation when cycling a new tank.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eShips standard parcel post. As a natural product, minor variation in grain and tone between bags is normal and not a fault.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWhat's the difference between Pink and White?\u003c\/h4\u003e\u003cp\u003eBoth are the same aragonite chemistry — the difference is purely the colour and tone of the finished sand bed, Pink giving a warmer look and White a brighter one.\u003c\/p\u003e\u003ch4\u003eDo I need to rinse it before adding it to the tank?\u003c\/h4\u003e\u003cp\u003eYes — even after Red Sea's own washing process, a rinse before use will settle any remaining fines faster and keep the water from clouding on day one.\u003c\/p\u003e\u003ch4\u003eHow deep should I make my sand bed?\u003c\/h4\u003e\u003cp\u003eThat depends on what you're running it for — talk to us about your setup if you're planning a deep sand bed rather than a shallow display layer, since the right depth changes the buying quantity.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"Pink","offer_id":54774151905571,"sku":"RED193","price":75.95,"currency_code":"AUD","in_stock":false},{"title":"White","offer_id":55335333921059,"sku":"RED194","price":75.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/Red-Sea-Reef-Base-Pink.jpg?v=1782112708","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/red-sea-reef-base-10kg","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}