{"product_id":"bioscape-holy-rock-replica-20-x-16-x-15cm-large","title":"Bioscape Holy Rock Replica 20 x 16 x 15cm Large","description":"\u003cp\u003e\u003cstrong\u003eA compact holey rock replica with genuine swim-through tunnels.\u003c\/strong\u003e The Bioscape Holey Rock Replica is a 20 x 16 x 15 cm hand-crafted, hand-painted resin casting in a natural grey stone tone, modelled on holey (honeycomb) rock. Like the rest of the Bioscape rock replica range, it's non-toxic and chemically inert, so it's safe for both freshwater and marine tanks once rinsed.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTunnelled, not just textured\u003c\/strong\u003e — cavities run through the piece, giving fish and shrimp real swim-through routes rather than a single shallow recess.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural grey stone finish\u003c\/strong\u003e — a neutral tone that sits well against most substrates and doesn't compete with plant or coral colour.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-toxic, inert resin\u003c\/strong\u003e — won't affect pH, KH\/GH or general water chemistry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and marine safe\u003c\/strong\u003e — one piece for planted, community, cichlid or reef-adjacent set-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact large format at 20 x 16 x 15 cm\u003c\/strong\u003e — sized for a mid-tank feature piece rather than a full-width centrepiece.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (L x W x H)\u003c\/th\u003e\n\u003ctd\u003e20 x 16 x 15 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHand-painted, non-toxic resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural grey stone replica\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBIS317\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhich one do I need?\u003c\/h3\u003e\u003cp\u003eBioscape sells this holey rock replica in two finishes and two sizes. Use the table below to compare this piece against its golden sibling.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHoley Rock Replica Large (this piece)\u003c\/td\u003e\n\u003ctd\u003e20 x 16 x 15 cm\u003c\/td\u003e\n\u003ctd\u003eNatural grey stone tone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHoley Rock Golden Replica Large\u003c\/td\u003e\n\u003ctd\u003e27 x 24 x 14 cm\u003c\/td\u003e\n\u003ctd\u003eWarm golden\/sandstone tone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003ePick this grey Holey Rock Replica where you want a cooler, more neutral hardscape tone or a smaller footprint for a mid-sized tank; pick the Golden Replica for a larger centrepiece or a warmer-toned aquascape.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater community, cichlid and planted tanks, and marine or reef-adjacent displays. Not suitable as a structural support for other equipment — it's an ornament, not a rated shelf or platform.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eRinse thoroughly before use. As a resin casting rather than natural rock, it won't leach tannins or affect KH over time, so it can go straight into a cycled tank after rinsing.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered against manufacturing defects on arrival, in addition to your rights under Australian Consumer Law. Standard freight.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eIs this real rock?\u003c\/h4\u003e\u003cp\u003eNo, it's a resin replica hand-painted to resemble natural holey rock, so it won't affect water hardness the way some real rock does.\u003c\/p\u003e\u003ch4\u003eIs it reef safe?\u003c\/h4\u003e\u003cp\u003eYes — it's chemically inert and safe for marine and reef-adjacent tanks once rinsed.\u003c\/p\u003e\u003ch4\u003eHow big is it really?\u003c\/h4\u003e\u003cp\u003e20 cm long, 16 cm wide and 15 cm tall — sized for a mid-tank feature rather than a full-width centrepiece.\u003c\/p\u003e\u003ch4\u003eHow does it compare to the Golden Replica?\u003c\/h4\u003e\u003cp\u003eSame tunnelled construction, but this one is a natural grey tone and the smaller of the two pieces.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293056188707,"sku":"BIS317","price":42.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/BIS317.jpg?v=1782870237","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/bioscape-holy-rock-replica-20-x-16-x-15cm-large","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}