{"product_id":"maxspect-mantis-bio-sphere-bio-ball-holder-4x3-pegs-marine-safe-petg-3d-printed","title":"Maxspect \/ Mantis Bio-Sphere Bio-Ball Holder (4x3 Pegs) - Marine Safe PETG 3D Printed","description":"\u003ch2\u003eYour Bio Media, Organised \u0026amp; Optimised\u003c\/h2\u003e\u003cp\u003eStop letting your bio-spheres and bio-balls roll around your sump doing half a job. Our \u003cstrong\u003eMarine-Safe PETG Bio-Ball Holder\u003c\/strong\u003e is purpose-built for Maxspect and Mantis bio-spheres, with a 4x3 peg grid that holds 12 pieces securely in place while maximising water contact and biological filtration surface area.\u003c\/p\u003e\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaxspect \u0026amp; Mantis Compatible\u003c\/strong\u003e — Designed to a precise 4x3 peg layout to seat bio-spheres and bio-balls firmly with no movement or stacking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Safe PETG\u003c\/strong\u003e — Printed in food-grade, reef-safe PETG that won’t leach harmful chemicals or affect your water parameters, corals, or livestock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Flow-Through Design\u003c\/strong\u003e — Open peg structure promotes unrestricted water flow around every piece of media for peak biological filtration efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeeps Your Sump Tidy\u003c\/strong\u003e — No more loose media migrating around your filter chamber — everything stays exactly where it should\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the UK\u003c\/strong\u003e — 3D printed to order by S\u0026amp;K 3D Printing Ltd, crafted for reef keepers who demand precision\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho Is It For?\u003c\/h2\u003e\u003cp\u003eWhether you're running a dedicated reef system, an SPS tank, or a high-bioload FOWLR setup — if you're using Maxspect or Mantis bio-spheres, this holder will bring order to your biological filtration and help it perform at its best.\u003c\/p\u003e\u003cp\u003ePair it with our \u003cstrong\u003eMaxspect Bio Block Holder\u003c\/strong\u003e for a fully organised, high-performance sump setup.\u003c\/p\u003e\u003cp\u003e\u003cem\u003ePrinted to order in the UK — because your reef deserves precision engineering.\u003c\/em\u003e\u003c\/p\u003e","brand":"S\u0026K 3D Printing Ltd","offers":[{"title":"Default Title","offer_id":58439181631819,"sku":null,"price":8.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1082\/9339\/0667\/files\/5D0BAEB3-ECAB-4B9E-8D62-A297AEF8D01C.png?v=1789061764","url":"https:\/\/sk3dprintingltd.com\/products\/maxspect-mantis-bio-sphere-bio-ball-holder-4x3-pegs-marine-safe-petg-3d-printed","provider":"S\u0026K 3D Printing Ltd","version":"1.0","type":"link"}