{"product_id":"fluval-sea-t5-marine-glo-high-output-tube","title":"Fluval Sea T5 Marine Glo High Output Tube","description":"\u003cp\u003e\u003cstrong\u003eReplaces the actinic blue channel that makes coral colour pop under white light.\u003c\/strong\u003e The Fluval Sea Marine Glo T5HO tube is a dedicated actinic bulb for marine and reef lighting fixtures, sold in three lengths to match your existing T5HO fixture.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDominant blue actinic spectrum\u003c\/strong\u003e — supplies the actinic wavelengths that drive coral and invertebrate fluorescence, the colour \"pop\" you don't get from a plain white tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports coral photosynthesis\u003c\/strong\u003e — the actinic peaks sit within the range photosynthetic corals and other invertebrates use, alongside your main white\/blue spectrum tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard T5HO format\u003c\/strong\u003e — drop-in replacement for any T5 High Output fixture built for the matching length and wattage, not limited to Fluval fixtures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree lengths\u003c\/strong\u003e — 55 cm\/24 W, 85 cm\/39 W and 115 cm\/54 W, so you can match wattage without cutting down a fixture.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 cm (22 in)\u003c\/td\u003e\n\u003ctd\u003e24 W\u003c\/td\u003e\n\u003ctd\u003eAG93\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e85 cm (33 in)\u003c\/td\u003e\n\u003ctd\u003e39 W\u003c\/td\u003e\n\u003ctd\u003eAG94\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e115 cm (46 in)\u003c\/td\u003e\n\u003ctd\u003e54 W\u003c\/td\u003e\n\u003ctd\u003eAG95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eMatch the length and wattage to what your fixture's ballast is rated for — a T5HO ballast is wattage-specific, so fitting a 39 W tube to a 24 W-rated fixture won't give extra output and may shorten the tube's life.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eFluval doesn't publish a colour-temperature (Kelvin) or lumen figure for the Marine Glo line specifically — it's marketed and sold on spectrum description (dominant blue\/actinic) rather than a Kelvin rating. If you need a specific Kelvin number for a controller or comparison, check with Fluval support before buying rather than assuming a figure.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSuitable for: marine and reef tanks running T5HO fixtures, as a supplementary actinic tube alongside a white\/full-spectrum T5HO tube.\u003c\/li\u003e\n\u003cli\u003eNot suitable for: freshwater planted tanks needing PAR for plant growth — this is an actinic-heavy marine tube, not a plant-growth spectrum. Not a standalone light source for a reef — pair it with a white spectrum tube for a usable colour balance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eT5HO tubes lose usable spectral output well before they stop lighting up. Many reef keepers replace actinic tubes on a roughly annual cycle even though they still glow, because the actinic peak fades faster than visible brightness — Fluval doesn't publish an exact figure for this tube, so treat that as general practice rather than a manufacturer number. Wipe dust and salt creep off the tube and reflector regularly, since both cut delivered light more than the tube's own ageing.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cp\u003eA white or full-spectrum T5HO tube in the matching length, to balance the actinic-heavy output of this tube into usable reef lighting.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Fluval's standard manufacturer warranty against defects, in addition to your rights under Australian Consumer Law. Small parcel item — glass tube, packed carefully.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill this fit a non-Fluval T5HO fixture?\u003c\/h4\u003e\u003cp\u003eYes — T5 High Output is a standard lamp format. Match the length and wattage to your fixture's ballast rating and it will fit regardless of brand.\u003c\/p\u003e\u003ch4\u003eHow often should I replace it?\u003c\/h4\u003e\u003cp\u003eFluval doesn't publish a fixed figure. As a general reef-keeping guideline, actinic T5HO tubes are often replaced annually since spectral output fades ahead of visible brightness — watch for corals looking duller under the same lighting as your cue.\u003c\/p\u003e\u003ch4\u003eCan I run this as my only light?\u003c\/h4\u003e\u003cp\u003eNot for a reef tank — it's an actinic supplement. Run it alongside a white\/full-spectrum T5HO tube for a usable colour balance and enough PAR for corals.\u003c\/p\u003e\u003ch4\u003eDoes it suit a freshwater planted tank?\u003c\/h4\u003e\u003cp\u003eNo — it's spectrum-tuned for marine actinic colour, not plant growth. Use a dedicated plant-spectrum tube for a freshwater planted setup.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"55cm 24w","offer_id":55334982549795,"sku":"AG93","price":41.95,"currency_code":"AUD","in_stock":false},{"title":"85cm 39w","offer_id":55293288939811,"sku":"AG94","price":44.95,"currency_code":"AUD","in_stock":false},{"title":"115cm 54w","offer_id":55334982582563,"sku":"AG95","price":50.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-sea-t5-marine-glo-hig-10281429074211-1-dq.webp?v=1790372839","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-sea-t5-marine-glo-high-output-tube","provider":"Nicks AOT","version":"1.0","type":"link"}