{"id":9793,"date":"2026-02-17T18:59:50","date_gmt":"2026-02-17T18:59:50","guid":{"rendered":"https:\/\/aquadistribution.co.uk\/product\/orange-spine-sea-urchin-tripneustes-gratilla\/"},"modified":"2026-02-17T18:59:51","modified_gmt":"2026-02-17T18:59:51","slug":"orange-spine-sea-urchin-tripneustes-gratilla","status":"publish","type":"product","link":"https:\/\/aquadistribution.co.uk\/?product=orange-spine-sea-urchin-tripneustes-gratilla","title":{"rendered":"Orange Spine Sea Urchin Tripneustes Gratilla"},"content":{"rendered":"

Orange Spine Sea Urchin \u2013 Tripneustes gratilla<\/em><\/h3>\n

Overview:<\/strong>
The Orange Spine Sea Urchin<\/strong>, also called the Collector Urchin<\/strong>, is a medium-to-large echinoderm known for its short, dense spines tipped in bright orange<\/strong>. It\u2019s highly effective at algae control<\/strong> and is widely used in reef tanks as part of a clean-up crew.<\/p>\n

Origin:<\/strong>
Native to the Indo-Pacific<\/strong>, including the Philippines, Fiji, Hawaii, and the Great Barrier Reef<\/strong>, where it grazes on seagrass beds, rubble zones, and reef flats.<\/p>\n

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Feeding:<\/strong><\/p>\n

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    Primarily an herbivore<\/strong>, grazing on film algae, macroalgae, and coralline algae.<\/p>\n<\/li>\n

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    May accept dried seaweed (nori)<\/strong>, spirulina, and sinking algae wafers when natural food is low.<\/p>\n<\/li>\n<\/ul>\n

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    Tank Mates:<\/strong><\/p>\n

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      Reef-safe<\/strong>, does not eat corals.<\/p>\n<\/li>\n

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      Avoid predatory species like triggerfish, puffers, and large wrasses<\/strong>, which may nip at or eat urchins.<\/p>\n<\/li>\n<\/ul>\n

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      Aggression Level:<\/strong>
      Peaceful.<\/strong> Non-aggressive, though it may accidentally dislodge small frags or unsecured rockwork while grazing.<\/p>\n

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      Experience Level:<\/strong>
      Intermediate.<\/strong> Hardy but requires a mature tank with established algae growth<\/strong>. Needs careful acclimation to avoid stress from salinity or pH shifts.<\/p>\n

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      Water Parameters:<\/strong><\/p>\n

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        Temperature: 74\u201380\u00b0F (23\u201327\u00b0C)<\/strong><\/p>\n<\/li>\n

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        pH: 8.1\u20138.4<\/strong><\/p>\n<\/li>\n

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        Salinity: 1.023\u20131.025<\/strong><\/p>\n<\/li>\n

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        Tank Size: 50+ gallons<\/strong><\/p>\n<\/li>\n<\/ul>\n

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        Unique Features:<\/strong><\/p>\n

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          Dense, short spines tipped with orange<\/strong> give it a striking appearance.<\/p>\n<\/li>\n

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          Like other collector urchins, it may carry shells, rubble, or algae<\/strong> on its back for camouflage.<\/p>\n<\/li>\n

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          Plays a key role as an algae controller<\/strong> in reef aquariums.<\/p>\n<\/li>\n<\/ul>\n

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          \u2728 The Orange Spine Sea Urchin<\/strong> is a vibrant, hardy algae grazer<\/strong> and an excellent addition to well-established reef tanks, provided the aquarium is large enough and rockwork is secure.<\/p>\n","protected":false},"excerpt":{"rendered":"

          Orange Spine Sea Urchin \u2013 Tripneustes gratilla Overview:The Orange Spine Sea Urchin, also called the Collector Urchin, is a medium-to-large echinoderm known for its short, dense spines tipped in bright orange. It\u2019s highly effective at algae control and is widely used in reef tanks as part of a clean-up crew. Origin:Native to the Indo-Pacific, including […]<\/p>\n","protected":false},"featured_media":9792,"template":"","meta":[],"product_brand":[],"product_cat":[79],"product_tag":[],"class_list":{"0":"post-9793","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-urchins","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"group_of_quantity":0,"min_quantity":0,"max_quantity":"","exclude_order_quantity_value_rules":"no","exclude_category_quantity_rules":"no","combine_variations":"no","exclude_global_add_ons":[],"addons":[],"_links":{"self":[{"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=\/wp\/v2\/product\/9793","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=\/wp\/v2\/media\/9792"}],"wp:attachment":[{"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9793"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=9793"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=9793"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/aquadistribution.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=9793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}