{"product_id":"seachem-brackish-salt","title":"Seachem Brackish Salt","description":"\u003cp\u003e\u003cstrong\u003eBrackish water done by the gram, not by guesswork.\u003c\/strong\u003e Seachem Brackish Salt is a mineral blend for estuary fish — livebearers, archers, chromides, monos, scats and Datnioides. It contains minimal sodium chloride, so it is not the same thing as tonic salt or marine salt mix, and at the published livebearer rate it does not harm aquarium plants. Sold in 300 g, 600 g and 4 kg.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDosed by species, not by specific gravity\u003c\/strong\u003e — Seachem publishes a gram-per-litre rate for each group of estuary fish, so you weigh rather than float a hydrometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal sodium chloride\u003c\/strong\u003e — it supplies the broader mineral profile of an estuary rather than just salting the water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant-safe at directed rates\u003c\/strong\u003e — the livebearer and general rates will not damage aquatic plants, which is unusual for a brackish product\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo effect on pH or KH\u003c\/strong\u003e — it does not buffer, so it will not fight a pH regime you have already set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree sizes\u003c\/strong\u003e — 300 g for a single livebearer tank up to 4 kg for a stocked brackish system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder 2c per litre at 4 kg\u003c\/strong\u003e — at the general\/livebearer rate the 4 kg pack works out to about 1.7c per litre of brackish water, against 3.4c per litre from the 300 g starter size\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eBrackish mineral salt blend\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizes\u003c\/th\u003e\n\u003ctd\u003e300 g, 600 g, 4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSodium chloride content\u003c\/th\u003e\n\u003ctd\u003eMinimal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEffect on pH\u003c\/th\u003e\n\u003ctd\u003eNone — does not buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEffect on carbonate hardness\u003c\/th\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlant safety\u003c\/th\u003e\n\u003ctd\u003eSafe at directed rates, except the scat dose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGeneral aquarium rate\u003c\/th\u003e\n\u003ctd\u003e20 g per 40 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eBrackish and freshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDosage and directions\u003c\/h3\u003e\u003cp\u003eDissolve the salt in fresh water before it goes into the tank. On an established aquarium, bring the level up gradually over several water changes rather than in one hit. Do not add salt when you are only topping up evaporation — the salt does not evaporate, so topping up with more salt raises the concentration each time.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFish group\u003c\/th\u003e\n\u003cth\u003eDose\u003c\/th\u003e\n\u003cth\u003eHousehold measure\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLivebearers — guppies, swordtails, platies, some mollies\u003c\/td\u003e\n\u003ctd\u003e20 g per 40 L\u003c\/td\u003e\n\u003ctd\u003eAbout 1 tablespoon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYucatan and Sri Lankan estuary fish — archers, chromides, some mollies\u003c\/td\u003e\n\u003ctd\u003e15 g per 12 L\u003c\/td\u003e\n\u003ctd\u003eAbout 2 teaspoons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThai, Cambodian, Bornean and Sumatran fish — Datnioides\u003c\/td\u003e\n\u003ctd\u003e40 g per 12 L\u003c\/td\u003e\n\u003ctd\u003eAbout 2 tablespoons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScats\u003c\/td\u003e\n\u003ctd\u003eUp to 80 g per 12 L\u003c\/td\u003e\n\u003ctd\u003eAbout 4 tablespoons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGeneral aquarium use\u003c\/td\u003e\n\u003ctd\u003e20 g per 40 L\u003c\/td\u003e\n\u003ctd\u003eAbout 1 tablespoon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eThe scat dose is not for planted aquariums. For a mixed brackish community, use an average dose representative of the species present rather than the highest one.\u003c\/p\u003e\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\u003cp\u003eHow far a pack goes depends entirely on which rate you are dosing at. Figures are rounded down.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eLivebearers, 20 g\/40 L\u003c\/th\u003e\n\u003cth\u003eArchers and chromides, 15 g\/12 L\u003c\/th\u003e\n\u003cth\u003eDatnioides, 40 g\/12 L\u003c\/th\u003e\n\u003cth\u003eScats, 80 g\/12 L\u003c\/th\u003e\n\u003cth\u003eCost per litre, general rate\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e300 g\u003c\/td\u003e\n\u003ctd\u003e600 L\u003c\/td\u003e\n\u003ctd\u003e240 L\u003c\/td\u003e\n\u003ctd\u003e90 L\u003c\/td\u003e\n\u003ctd\u003e45 L\u003c\/td\u003e\n\u003ctd\u003e3.4c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e600 g\u003c\/td\u003e\n\u003ctd\u003e1,200 L\u003c\/td\u003e\n\u003ctd\u003e480 L\u003c\/td\u003e\n\u003ctd\u003e180 L\u003c\/td\u003e\n\u003ctd\u003e90 L\u003c\/td\u003e\n\u003ctd\u003e3.4c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 kg\u003c\/td\u003e\n\u003ctd\u003e8,000 L\u003c\/td\u003e\n\u003ctd\u003e3,200 L\u003c\/td\u003e\n\u003ctd\u003e1,200 L\u003c\/td\u003e\n\u003ctd\u003e600 L\u003c\/td\u003e\n\u003ctd\u003e1.7c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eA 200 L scat tank takes roughly 1.3 kg to set up at the full scat rate, which puts most scat keepers straight onto the 4 kg pack.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e brackish community tanks · livebearer tanks where a light mineral load is wanted · archers, chromides, monos, scats and Datnioides · planted brackish setups, at the livebearer and general rates.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e marine aquariums, where a full synthetic sea salt is required · planted tanks at the scat dose · use as a freshwater tonic salt, which is a different product at a different rate · topping up evaporation.\u003c\/p\u003e\u003ch3\u003eWhat we could not verify\u003c\/h3\u003e\u003cp\u003eSeachem does not publish an elemental analysis for Brackish Salt, so this page states the dose rates and the composition claims the manufacturer makes, and no figures beyond them. If you need a target specific gravity for a species, dose by weight from the table above and measure the result in your own tank.\u003c\/p\u003e\u003ch3\u003eCare and storage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eKeep the container sealed — the blend takes up moisture and will cake if left open\u003c\/li\u003e\n\u003cli\u003eWeigh rather than scoop where you can; the tablespoon equivalents are approximate\u003c\/li\u003e\n\u003cli\u003eDissolve fully before adding, so undissolved grains do not settle on plants or substrate\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachem-prime\"\u003eSeachem Prime\u003c\/a\u003e — conditions the fresh water you dissolve the salt into\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachem-stability\"\u003eSeachem Stability\u003c\/a\u003e — salinity changes knock a biofilter about, so support it while you raise the level\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachem-cichlid-lake-salt\"\u003eSeachem Cichlid Lake Salt\u003c\/a\u003e — the Rift Lake equivalent, for African cichlids rather than estuary fish\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachem-american-cichlid-salt\"\u003eSeachem American Cichlid Salt\u003c\/a\u003e — for soft-water Central and South American cichlids\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachem-multitest-ammonia-75-tests\"\u003eSeachem MultiTest: Ammonia\u003c\/a\u003e — worth watching while the biofilter adjusts to a new salinity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eThis product carries the consumer guarantees under the Australian Consumer Law, which cannot be excluded. Contact us if a pack arrives damaged or has hardened in transit.\u003c\/p\u003e\u003cp\u003eThe 300 g and 600 g ship as standard parcels. The 4 kg is a heavier parcel and is charged accordingly. No dangerous goods restrictions apply.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow much Brackish Salt do I use per litre?\u003c\/h4\u003e\u003cp\u003eIt depends on the fish. Livebearers and general use call for 20 g per 40 L, which is 0.5 g per litre. Archers and chromides take 15 g per 12 L, and scats can go up to 80 g per 12 L.\u003c\/p\u003e\u003ch4\u003eWill it harm my aquarium plants?\u003c\/h4\u003e\u003cp\u003eNot at the livebearer or general rates, which Seachem states are safe for aquatic plants. The scat dose is the exception and is not for planted tanks.\u003c\/p\u003e\u003ch4\u003eIs this the same as aquarium tonic salt?\u003c\/h4\u003e\u003cp\u003eNo. Tonic salt is essentially sodium chloride. Brackish Salt contains minimal sodium chloride and supplies a broader mineral profile, so the two are not interchangeable at the same dose.\u003c\/p\u003e\u003ch4\u003eDoes it change pH?\u003c\/h4\u003e\u003cp\u003eNo. It does not buffer and does not raise carbonate hardness, so your existing pH regime stays as it is.\u003c\/p\u003e\u003ch4\u003eCan I add it straight to the tank?\u003c\/h4\u003e\u003cp\u003eDissolve it in fresh water first. On an established tank, raise the level gradually across several water changes rather than in one dose.\u003c\/p\u003e\u003ch4\u003eDo I add more when the water evaporates?\u003c\/h4\u003e\u003cp\u003eNo. Salt does not evaporate, so top up with fresh water only. Adding salt to replace evaporation raises the concentration a little more each time.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"300 g","offer_id":55244169740579,"sku":null,"price":20.95,"currency_code":"AUD","in_stock":true},{"title":"600 g","offer_id":55244169773347,"sku":null,"price":40.95,"currency_code":"AUD","in_stock":true},{"title":"4 kg","offer_id":55244169806115,"sku":null,"price":142.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/0229-brackish_salt-4_kg-scaled.png?v=1782710700","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/seachem-brackish-salt","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}