{"product_id":"bioscape-bioscape-mineral-round-airstone-30-x-30mm","title":"Bioscape Mineral Round Airstone 30 x 30mm","description":"\u003cp\u003e\u003cstrong\u003eA broader bubble column from a single round stone.\u003c\/strong\u003e The Bioscape Round Mineral Airstone 30 x 30mm breaks pump air into a broad, even column of fine bubbles — a wider footprint than a standard cylindrical stone, suited to larger tanks or a dedicated feature-aeration spot. It works in freshwater and marine aquariums.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad bubble column\u003c\/strong\u003e — the round shape spreads the bubble curtain wider than a standard cylindrical airstone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine, even mist\u003c\/strong\u003e — the mineral stone structure produces a finer mist than a plain plastic diffuser.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or marine\u003c\/strong\u003e — the mineral material doesn't react with saltwater, so the same stone works in either setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns off any standard air pump\u003c\/strong\u003e — no proprietary fitting or driver required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003cth\u003eRequires (not included)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e30 x 30 mm\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003ctd\u003eAir pump, airline tubing, check valve\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhich airstone do I need?\u003c\/h3\u003e\u003cp\u003eThis round stone is the widest-footprint option in Bioscape's mineral airstone range — reach for it when a standard cylindrical stone isn't giving enough bubble coverage across a larger tank.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAirstone\u003c\/th\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMineral Airstone 25mm 3 Pack\u003c\/td\u003e\n\u003ctd\u003eStandard cylindrical, 25 mm\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eGeneral-purpose aeration with spares on hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRound Airstone 30x30mm\u003c\/td\u003e\n\u003ctd\u003eRound, 30 x 30 mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eA wider bubble column for larger tanks or a feature aeration spot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlim Airstones Carded 3 Pack\u003c\/td\u003e\n\u003ctd\u003eSlim profile\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eTight spaces behind hardscape, filter intakes or planted aquascapes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for larger tanks or feature aeration spots in freshwater and marine aquariums running a standard air pump. Not a substitute for mechanical or biological filtration, and not useful on its own without a pump.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eMineral airstones clog gradually as mineral deposits and biofilm build up, and the bubble stream coarsens as that happens. Bioscape doesn't publish a fixed replacement interval — watch for a coarser or uneven bubble pattern as the sign to replace it. Because this is sold as a single stone rather than a card of three, it's worth keeping a spare on hand, or choosing the 3-pack range if you're running several airstones.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cp\u003eNeeds an air pump sized to your tank and how many stones or ornaments it runs, plus airline tubing to connect them. A check valve fitted in the line stops water siphoning back into the pump during a power cut.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered against manufacturing defects under Bioscape's warranty, in addition to your rights under Australian Consumer Law. Ships by standard parcel post.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWhy choose the round stone over a standard airstone?\u003c\/h4\u003e\u003cp\u003eIts round shape spreads bubbles across a wider footprint than a standard cylindrical stone, which suits larger tanks or a dedicated feature-aeration spot better than a narrow bubble column.\u003c\/p\u003e\u003ch4\u003eWill this work in a saltwater tank?\u003c\/h4\u003e\u003cp\u003eYes. The mineral stone doesn't react with saltwater, so it suits freshwater and marine setups.\u003c\/p\u003e\u003ch4\u003eDoes it come with spares?\u003c\/h4\u003e\u003cp\u003eNo — this is sold as a single stone. Bioscape's 3-pack ranges are worth choosing instead if you want spares on hand.\u003c\/p\u003e\u003ch4\u003eHow do I know when to replace it?\u003c\/h4\u003e\u003cp\u003eWhen the bubble stream turns coarse or uneven instead of a fine mist.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774338126115,"sku":"BIS128","price":2.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/BIS128_1_b2313e16-c4aa-468c-a2ae-1a8f78136d63.jpg?v=1782868934","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/bioscape-bioscape-mineral-round-airstone-30-x-30mm","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}