{"product_id":"continuum-ulns-nitro-500mll","title":"Continuum ULNS Nitro Nitrogen Supplement 500ml","description":"\u003cp\u003e\u003cstrong\u003eContinuum ULNS Nitro restores nitrogen to reef tanks that have been stripped too clean.\u003c\/strong\u003e It's a complex inorganic nitrogen source built for ultra-low-nutrient systems (ULNS) where nitrate has bottomed out — the point where corals start to pale, bleach or lose tissue because the bacteria and zooxanthellae they depend on are starving. Dosing is calculated from your measured nitrate reading rather than applied on a fixed schedule, so testing before every dose isn't optional.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargeted nitrogen source\u003c\/strong\u003e — for reef systems where nitrate has fallen below Continuum's recommended range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDose calculated from your test result\u003c\/strong\u003e — not a flat daily dose; you measure, then dose to the number.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairs with bacterial dosing\u003c\/strong\u003e — Continuum recommends using it alongside BacterGen•M or Reef Micro•Fuel for bacterial support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced hobbyist product\u003c\/strong\u003e — intended for reefers already running a ULNS system and comfortable testing regularly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder 1c per litre\u003c\/strong\u003e — at Continuum's reference dosing rate, the 500 mL bottle works out to under 1c per litre of tank water treated.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eComplex inorganic nitrogen supplement for nitrate-limited reef systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eActive constituents\u003c\/th\u003e\n\u003ctd\u003eContinuum describes this as a complex inorganic nitrogen source (nitrogen salts); a full ingredient breakdown is not published\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget nitrate range\u003c\/th\u003e\n\u003ctd\u003e3.0–5.0 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitability\u003c\/th\u003e\n\u003ctd\u003eMarine and reef aquaria running ultra-low-nutrient systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCost per litre\u003c\/th\u003e\n\u003ctd\u003e500 mL: under 1c per litre, based on Continuum's reference dose of 5 mL per 100 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eDosage and directions\u003c\/h3\u003e\u003ch4\u003eHow much do I dose?\u003c\/h4\u003e\u003cp\u003e5 mL raises nitrate by approximately 0.5 ppm in 100 L (25 US gallons). For other volumes, Continuum's formula is: tank volume in US gallons × desired ppm increase × 0.4 = millilitres to dose. As an example, a 100-US-gallon tank needing a 0.5 ppm rise takes about 20 mL, or roughly 4 capfuls.\u003c\/p\u003e\u003ch4\u003eBefore you dose\u003c\/h4\u003e\u003cp\u003eTest nitrate and phosphate first. Only dose if nitrate is below 3.0 ppm — Continuum's target range for a ULNS system is 3.0 to 5.0 ppm. Shake the bottle well, dose, then wait 24 hours before retesting.\u003c\/p\u003e\u003ch4\u003eWhat to pair it with\u003c\/h4\u003e\u003cp\u003eContinuum recommends dosing alongside BacterGen•M or Reef Micro•Fuel for bacterial support, and pairing with Continuum ULNS Phos if phosphate is also undetectable.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e established reef systems running ultra-low-nutrient husbandry where nitrate has dropped below 3.0 ppm and corals are showing signs of nutrient starvation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e tanks that are not nitrate-limited — dosing nitrogen into a system that doesn't need it will push nutrients up and can trigger nuisance algae.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eOveruse can promote nuisance algae, so dose to a tested figure rather than guessing. Keep out of reach of children; not for human consumption. Contains nitrogen salts — if the product contacts eyes, flush with water.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eSold with Continuum's standard packaging warranty against manufacturing defects, in addition to the consumer guarantees you're entitled to under Australian Consumer Law. Ships from Nick's Aquarium Oceanarium Terrarium in Brisbane \/ North Lakes, QLD.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow do I know if I need this?\u003c\/h4\u003e\u003cp\u003eIf your reef tank's nitrate has dropped below Continuum's recommended 3.0–5.0 ppm range and corals are paling, bleaching or losing tissue, ULNS Nitro is designed to bring nitrate back into range.\u003c\/p\u003e\u003ch4\u003eHow often can I dose?\u003c\/h4\u003e\u003cp\u003eContinuum's process is test, dose, then wait 24 hours before retesting — there's no fixed daily schedule. Dose again once you've confirmed where nitrate sits.\u003c\/p\u003e\u003ch4\u003eCan I use this to lower nitrate?\u003c\/h4\u003e\u003cp\u003eNo. ULNS Nitro adds nitrogen — it raises nitrate, it doesn't lower it.\u003c\/p\u003e\u003ch4\u003eWhat else should I be dosing alongside it?\u003c\/h4\u003e\u003cp\u003eContinuum recommends BacterGen•M or Reef Micro•Fuel for bacterial support, and its companion product ULNS Phos if phosphate is also undetectable.\u003c\/p\u003e","brand":"Continuum","offers":[{"title":"Default Title","offer_id":55242229809443,"sku":"AA3811","price":44.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/continuum-ulns-nitro-500mll-43160373264675.webp?v=1790230925","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/continuum-ulns-nitro-500mll","provider":"Nicks AOT","version":"1.0","type":"link"}