{"product_id":"fluval-gravel-vac-substrate-cleaner","title":"Fluval Gravel Vac Substrate Cleaner","description":"\u003cp\u003e\u003cstrong\u003eSelf-priming gravel vacuum that cleans substrate while you drain water for a change.\u003c\/strong\u003e The Fluval Gravel Vac Multi-Substrate Cleaner siphons debris out of gravel, sand or rock with a couple of pumps on the Easy Start bulb — no mouth-priming — and a gravel guard stops it clogging mid-clean. It's sold in two lengths, sized to how deep your aquarium is rather than its litre rating, so tank depth is what decides which one you need.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Start siphon\u003c\/strong\u003e — a few pumps on the bulb gets flow going, no mouth-priming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGravel guard\u003c\/strong\u003e — a wider intake sleeve stops gravel and rock being pulled into the hose and clogging the tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThumb-operated flow regulator\u003c\/strong\u003e — slow the flow down over delicate planting or shrimp, or open it up for a fast clean.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks on any substrate\u003c\/strong\u003e — sand, gravel or rock, in freshwater or saltwater tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBucket clip included\u003c\/strong\u003e — hooks over the rim of a bucket so you're not holding both hose ends at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 cm extension tube\u003c\/strong\u003e — reaches further into the tank for hard-to-reach corners.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eSmall \/ Medium (FGV01)\u003c\/th\u003e\n\u003cth\u003eMedium \/ Large (AA3371)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum tank depth\u003c\/th\u003e\n\u003ctd\u003eUp to 50.8 cm (20″)\u003c\/td\u003e\n\u003ctd\u003eUp to 60 cm (24″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExtension tube\u003c\/th\u003e\n\u003ctd\u003e20 cm (8″)\u003c\/td\u003e\n\u003ctd\u003e20 cm (8″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e015561110808\u003c\/td\u003e\n\u003ctd\u003e015561110815\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePriming\u003c\/th\u003e\n\u003ctd\u003eEasy Start siphon bulb\u003c\/td\u003e\n\u003ctd\u003eEasy Start siphon bulb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow control\u003c\/th\u003e\n\u003ctd\u003eThumb-operated regulator\u003c\/td\u003e\n\u003ctd\u003eThumb-operated regulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\n\u003cp\u003eSize here is about how deep your tank is, not how many litres it holds — a wide, shallow tank and a tall, narrow one of the same volume can need different lengths.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall \/ Medium (FGV01)\u003c\/strong\u003e — suits tanks up to 50.8 cm (20″) deep, front to substrate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium \/ Large (AA3371)\u003c\/strong\u003e — suits tanks up to 60 cm (24″) deep, including most 4-foot and larger display tanks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMeasure the water depth from the surface to the substrate, not the tank's external height, before choosing.\u003c\/p\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntake tube with gravel guard\u003c\/li\u003e\n\u003cli\u003eExtension tube (20 cm \/ 8″)\u003c\/li\u003e\n\u003cli\u003eFlow regulator\u003c\/li\u003e\n\u003cli\u003ePVC hose\u003c\/li\u003e\n\u003cli\u003eEasy Start siphon bulb\u003c\/li\u003e\n\u003cli\u003eBucket clip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the intake and gravel guard after use to clear any trapped debris, and check the siphon bulb valve isn't gritty before the next water change — grit in the bulb is the most common reason priming stops working smoothly.\u003c\/p\u003e\n\u003ch3\u003eSuitable for\u003c\/h3\u003e\n\u003cp\u003eFreshwater and saltwater aquariums, and any substrate — sand, gravel or rock. Not designed to lift heavy decor or plants; move these by hand before vacuuming around them.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Fluval's standard warranty against manufacturing defects, in addition to your rights under Australian Consumer Law.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eCan I use this on sand without pulling it all into the hose?\u003c\/h4\u003e\n\u003cp\u003eYes — the gravel guard widens the intake opening so it skims debris off the surface rather than drawing in the substrate itself. Hold it just above the sand rather than pushing it in for the gentlest result.\u003c\/p\u003e\n\u003ch4\u003eDo I need to suck on the hose to start it?\u003c\/h4\u003e\n\u003cp\u003eNo. The Easy Start bulb primes the siphon with a few pumps, so there's no mouth-priming involved.\u003c\/p\u003e\n\u003ch4\u003eWhich size fits a standard 4-foot tank?\u003c\/h4\u003e\n\u003cp\u003eMost 4-foot display tanks are around 45–60 cm deep, so the Medium\/Large (AA3371) is the safer choice — check your tank's actual water depth if you're near that upper limit.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Small \/ Medium","offer_id":55249641734435,"sku":"FGV01","price":38.95,"currency_code":"AUD","in_stock":true},{"title":"Medium \/ Large","offer_id":55249641767203,"sku":"AA3371","price":56.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/FGV01_1.png?v=1772078265","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-gravel-vac-substrate-cleaner","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}