{"product_id":"red-sea-salts-22kg-bucket-600-ltrs","title":"Red Sea Salts - 22kg bucket (600 ltrs)","description":"\u003cp\u003e\u003cstrong\u003eA full season's worth of water changes in one bucket.\u003c\/strong\u003e Red Sea Salt is a premium reef-grade marine salt mix that dissolves fast and clean to a balanced calcium, alkalinity and magnesium profile. This 22 kg bucket is Red Sea's largest pack size — mixing to around 575 L at full reef salinity, or further again for a fish-only system — sized for an established tank doing regular water changes rather than a single top-up.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne salt, three targets\u003c\/strong\u003e — the same formula mixes to a lighter fish-only salinity, a mid invertebrate salinity, or full reef salinity, just by changing how much you dose. See the mix ratio table below.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResealable bucket\u003c\/strong\u003e — keeps the remaining salt dry between water changes, unlike a torn-open bag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree of nitrate and phosphate\u003c\/strong\u003e — won't feed algae or push a reef tank off balance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMix ratio and resulting parameters\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSystem type\u003c\/th\u003e\n\u003cth\u003eDose\u003c\/th\u003e\n\u003cth\u003eSalinity\u003c\/th\u003e\n\u003cth\u003eCalcium\u003c\/th\u003e\n\u003cth\u003eAlkalinity\u003c\/th\u003e\n\u003cth\u003eMagnesium\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFish-only\u003c\/td\u003e\n\u003ctd\u003e33.4 g\/L\u003c\/td\u003e\n\u003ctd\u003e31.0 ppt\u003c\/td\u003e\n\u003ctd\u003e365–395 mg\/L\u003c\/td\u003e\n\u003ctd\u003e6.8–7.3 dKH\u003c\/td\u003e\n\u003ctd\u003e1,100–1,180 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-coral invertebrates\u003c\/td\u003e\n\u003ctd\u003e36.0 g\/L\u003c\/td\u003e\n\u003ctd\u003e33.5 ppt\u003c\/td\u003e\n\u003ctd\u003e390–420 mg\/L\u003c\/td\u003e\n\u003ctd\u003e7.3–7.8 dKH\u003c\/td\u003e\n\u003ctd\u003e1,170–1,230 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoral and reef\u003c\/td\u003e\n\u003ctd\u003e38.2 g\/L\u003c\/td\u003e\n\u003ctd\u003e35.0–35.5 ppt\u003c\/td\u003e\n\u003ctd\u003e415–445 mg\/L\u003c\/td\u003e\n\u003ctd\u003e7.7–8.2 dKH\u003c\/td\u003e\n\u003ctd\u003e1,240–1,320 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eAdd salt to water, not water to salt. Mix vigorously without aeration for 30 minutes to 2 hours until the pH settles at 8.2–8.5, then bring the mix to tank temperature and check salinity with a refractometer before use.\u003c\/p\u003e\u003ch3\u003eWhich pack size is cheapest per litre?\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eLitres at reef salinity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 kg bag\u003c\/td\u003e\n\u003ctd\u003e~52 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 kg bag\u003c\/td\u003e\n\u003ctd\u003e~104 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22 kg bucket\u003c\/td\u003e\n\u003ctd\u003e~575 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe 4 kg bag is marginally cheaper per litre than this bucket at current pricing. The bucket's real advantage is fewer bag changes and resealable storage for a tank you're maintaining long-term, not the absolute lowest cost per litre.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for fish-only, invertebrate and coral\/reef marine systems doing regular water changes — the bucket format is built for repeated use, not a one-off. Not the most economical option gram for gram at current pricing; if cost per litre is the deciding factor, compare against the 4 kg bag above before buying the bucket purely for the bulk size.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eKeep the lid sealed between uses — a damp storage area or a lid left off will clump the salt before you get to use it all. Mix in a clean, dedicated bucket and let the water reach tank temperature before dosing.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eSold as a consumable, not a warranted item beyond your consumer guarantee rights under Australian Consumer Law — if a bucket arrives damaged or short-filled, contact us for a replacement.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow much water does the 22 kg bucket actually make?\u003c\/h4\u003e\u003cp\u003eAround 575 L mixed to full reef salinity (38.2 g\/L). Mixed lighter, for a fish-only tank at 33.4 g\/L, it stretches further — up to around 660 L, which is the figure Red Sea publishes for this pack size.\u003c\/p\u003e\u003ch4\u003eIs the 22 kg bucket the best value option?\u003c\/h4\u003e\u003cp\u003eNot quite, at current pricing — the 4 kg bag works out slightly cheaper per litre. The bucket's advantage is fewer bag changes and resealable storage, not the lowest cost per litre.\u003c\/p\u003e\u003ch4\u003eIs this the same formula as the 2 kg and 4 kg packs?\u003c\/h4\u003e\u003cp\u003eYes — identical salt, just a bigger pack size.\u003c\/p\u003e\u003ch4\u003eCan I store opened salt in the bucket itself?\u003c\/h4\u003e\u003cp\u003eYes — that's the point of the resealable lid. Keep it somewhere dry rather than a damp shed or garage.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"Default Title","offer_id":55242298130723,"sku":"BA0346","price":169.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/red-sea-salts-22kg-bucket-600-ltrs-3003858-1600.jpg?v=1781836191","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/red-sea-salts-22kg-bucket-600-ltrs","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}