{"product_id":"bioscape-limewood-airstone-carded","title":"Bioscape Limewood Airstone Carded","description":"\u003cp\u003e\u003cstrong\u003eExtra-fine bubbles from a block of wood, not a moulded diffuser.\u003c\/strong\u003e Bioscape's Limewood Airstone is a small block of porous limewood that breaks airline output into a fine mist of bubbles — a simple upgrade over a standard plastic airstone, and a common swap-in for the airstone inside a protein skimmer.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine bubble output\u003c\/strong\u003e — the porous wood grain produces noticeably finer bubbles than a moulded plastic or ceramic airstone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkimmer-grade replacement\u003c\/strong\u003e — a common substitute for the factory airstone inside a protein skimmer, where finer bubbles mean more surface area for the skim.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact\u003c\/strong\u003e — a 5 cm block on a 2 cm square cross-section, small enough for nano tanks and tight skimmer bodies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle carded unit\u003c\/strong\u003e — sold on its own card, ready to attach to airline.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eCross-section\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e5 cm\u003c\/td\u003e\n\u003ctd\u003e2 x 2 cm\u003c\/td\u003e\n\u003ctd\u003eLimewood\u003c\/td\u003e\n\u003ctd\u003e1 on card\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat you'll still need\u003c\/h3\u003e\u003cp\u003eThis is the airstone only — you'll need an air pump and airline tubing to run it, and a check valve if it's mounted below the waterline.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater and marine tanks needing extra-fine aeration, and as a direct swap into most protein skimmers. Not a filtration or biological media product — it aerates and diffuses air, nothing more.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eWood airstones lose fineness as the pores clog with biofilm and mineral deposits — bubbles noticeably coarsen or airflow drops as this happens. Bioscape doesn't publish a fixed replacement interval; treat coarsening bubbles or a drop in flow as the sign it's due for swapping, rather than working to a calendar date.\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 as a small carded item by standard parcel post.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow long does a limewood airstone last?\u003c\/h4\u003e\u003cp\u003eBioscape doesn't publish a specific interval — it depends on bioload and how much biofilm builds up in the pores. Coarser bubbles or reduced flow is the practical sign it needs replacing.\u003c\/p\u003e\u003ch4\u003eWill this work in my protein skimmer?\u003c\/h4\u003e\u003cp\u003eIt's commonly used as a skimmer airstone replacement, but check your skimmer's airstone housing size against the 5 cm x 2 cm block before ordering.\u003c\/p\u003e\u003ch4\u003eDoes it need soaking before use?\u003c\/h4\u003e\u003cp\u003eBioscape doesn't publish a soak step for this product — rinse before use and it's ready to attach to airline.\u003c\/p\u003e\u003ch4\u003eCan I use it in a freshwater tank as well as marine?\u003c\/h4\u003e\u003cp\u003eYes — it's sold as a general aeration airstone suited to both freshwater and marine setups.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293049143587,"sku":"BIS111","price":5.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/BIS111_7.jpg?v=1782869792","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/bioscape-limewood-airstone-carded","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}