{"product_id":"aqua-illumination-ai-hydra-edge-68hd-reef-led-light","title":"AI Hydra® Edge 68HD — Smart Reef LED","description":"\u003cp\u003eThe Hydra® Edge 68HD is AquaIllumination's largest Edge-series fixture — purpose-built for systems demanding both maximum output and wide, even coverage. EdgeField™ Optics deliver a 100° beam spread that all but eliminates the hot-spot\/dead-zone pattern common to narrower-lens LED arrays, while Solar Blue spectrum targets the 420–480nm absorption peaks of coral zooxanthellae (\u003cem\u003eSymbiodinium\u003c\/em\u003e spp.) where photosynthetic efficiency is highest.\u003c\/p\u003e\n\n\u003ch3\u003eCoral Compatibility \u0026amp; PAR Reference\u003c\/h3\u003e\n\u003cp\u003ePAR (Photosynthetically Active Radiation, µmol photons\/m²\/s) is the scientifically measurable unit of light intensity available at the coral surface for photosynthesis. The 68HD's 180 µmol peak and 90–135 µmol spread across a 24\" footprint puts it in firm SPS territory. The wider spread of EdgeField™ optics means the numbers at the perimeter of your tank are much closer to center values than with conventional LEDs — critical for evenly lighting acropora colonies at the rock edges.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:0.875rem;margin:14px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:rgba(59,130,246,0.08);text-align:left;\"\u003e\n\u003cth style=\"padding:10px 12px;border-bottom:2px solid rgba(128,128,128,0.15);\"\u003eCoral Type\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border-bottom:2px solid rgba(128,128,128,0.15);\"\u003eTarget PAR (µmol\/m²\/s)\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border-bottom:2px solid rgba(128,128,128,0.15);\"\u003eEdge 68HD Intensity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003eSoft corals (mushrooms, zoanthids, leathers)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003e25–75\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003e20–40%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:rgba(128,128,128,0.03);\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003eLPS (hammer, torch, frogspawn, brain corals)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003e50–200\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003e30–60%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003eMixed reef (LPS + moderate SPS)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003e100–300\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid rgba(128,128,128,0.1);\"\u003e50–75%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:rgba(128,128,128,0.03);\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eSPS-dominant (acropora, montipora, stylophora)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e200–500+\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e70–100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.8rem;opacity:0.65;font-style:italic;\"\u003ePAR: 180 µmol peak \/ 90–135 µmol across a 24\" spread at rated output. Always verify at your specific coral placement depth with a PAR meter — deeper placements and glass covers reduce available PAR significantly.\u003c\/p\u003e\n\n\u003ch3\u003ePhotoacclimation Protocol\u003c\/h3\u003e\n\u003cp\u003eThe 68HD's high output ceiling demands careful photoacclimation — zooxanthellae cannot rapidly upregulate protective pigments in response to sudden PAR increases, and photoinhibition presents as bleaching from colony tips downward. When commissioning or adding corals:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeeks 1–2:\u003c\/strong\u003e 20–30% of target schedule\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeeks 3–4:\u003c\/strong\u003e Step up to 45–60%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeeks 5–6:\u003c\/strong\u003e Step up to 70–85%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeek 7+:\u003c\/strong\u003e Full target intensity — watch for tip bleaching before advancing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eToo much light:\u003c\/strong\u003e pale\/white coloration beginning at colony tips and high points, tissue recession. \u003cstrong\u003eToo little:\u003c\/strong\u003e brown coloration (excess zooxanthellae), elongation or growth toward the fixture.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdgeField™ Optics\u003c\/strong\u003e — 100° wide-angle spread with superior color mixing and uniform PAR edge-to-edge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Blue Spectrum\u003c\/strong\u003e — optimized for 420–480nm chlorophyll a\/c absorption peaks in coral zooxanthellae\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Ring\u003c\/strong\u003e shimmer control for natural ocean shimmer effects\u003c\/li\u003e\n\u003cli\u003eFull Mobius® app control (iOS \u0026amp; Android)\u003c\/li\u003e\n\u003cli\u003eNeptune Apex \/ Fusion compatible\u003c\/li\u003e\n\u003cli\u003ePAR: 180 µmol peak \/ 90–135 µmol across 24\" spread\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 135W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoverage:\u003c\/strong\u003e Up to 30\"+ (single fixture); pair for 48\"+ tanks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Mounting Height:\u003c\/strong\u003e 8–14\" above water surface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 15.25\" L × 6\" W × 1.06\" H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.7 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 14 ft 8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e 100–240VAC \/ 50–60Hz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"YoCamron's Aquatics","offers":[{"title":"Hydra Edge 68HD","offer_id":50095414313197,"sku":"AI-HYDRAEDGE68HD","price":937.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/1032\/8813\/files\/alfalfa-web-hero-1800px-1_854e1965-6dc2-4dda-b676-4f273a11c73a.webp?v=1781976844","url":"https:\/\/yocamronsaquatics.com\/products\/aqua-illumination-ai-hydra-edge-68hd-reef-led-light","provider":"YoCamron's Exotics","version":"1.0","type":"link"}