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Aquarium Lighting is one of the most important parts of a successful reef aquarium or planted freshwater tank. It is also amongst the most confusing and misunderstood of all aquarium supplies and equipment. Please give us a call if you need help selecting an appropriate lighting setup for your system. Here you'll find LED aquarium lights, metal halide aquarium lights, specialty products like moonlight aquarium lights independent lighting components like ballasts and reflectors, and lighting systems and timers.

At AquaCave, we offer some of the best selection and best prices on Aquarium Lighting, Reef Lighting, LED, T5, Metal Halide, Planted, and refugium lighting for your marine, reef, and freshwater aquarium.

  • ReefLED 50 Universal Mounting Arm - Red Sea ReefLED 50 Universal Mounting Arm - Red Sea ReefLED 50 Universal Mounting Arm - Red Sea

    Red Sea

    ReefLED 50 Universal Mounting Arm - Red Sea

    Red Sea ReefLED 50 Universal Mounting Arm The ReefLED 50 universal mounting arm is suitable for tank widths 14"-20” with a glass thickness of 5/16”-5/8” and can be rotated from side to side during reefscaping or other tank maintenance...

    $45.00
  • Finnex Stingray 3.0 12" Aquarium LED Light - 9W Finnex Stingray 3.0 12" Aquarium LED Light - 9W Finnex Stingray 3.0 12" Aquarium LED Light - 9W Finnex Stingray 3.0 12" Aquarium LED Light - 9W Finnex Stingray 3.0 12" Aquarium LED Light - 9W

    Finnex

    Finnex Stingray 3.0 12" Aquarium LED Light - 9W

    Finnex Stingray 3.0 12" Aquarium LED Light - 9W Perfect Blend: 5700k + 6500k + True 660nm Deep Red + 660nm Midnight BlueWater Resistant: IP67 water resistance to avoid water mishaps and moisture damageQuality Built: Quality components throughout the...

    $44.99
  • Fluval Sea Nano 9000K Light Fixture Fluval Sea Nano 9000K Light Fixture Fluval Sea Nano 9000K Light Fixture Fluval Sea Nano 9000K Light Fixture

    Fluval

    Fluval Sea Nano 9000K Light Fixture

    Fluval Sea Nano 9000K Light Fixture Offering a hybrid spectrum and 9000K color temperature that supports fish-only marine tanks as well as plant and coral species that require lower light levels, C.O.B. provides Flexibility for your freshwater or...

    Was: $59.99
    Now: $44.99
  • Finnex FugeRay Planted Plus U12WM Finnex FugeRay Planted Plus U12WM Finnex FugeRay Planted Plus U12WM

    Finnex

    Finnex FugeRay Planted Plus U12WM

    Finnex FugeRay Planted Plus U This Contemporary Ultra Slim designed LED fixture features a series of LEDs to promote Marine Refugium & Freshwater growth.  Unlike the Ray II which incorporates multiple High Output LEDS pinched together for high...

    $54.95
    $43.99
  • AI Hydra Edge HMS Hanging Kit - AquaIlluminations AI Hydra Edge HMS Hanging Kit - AquaIlluminations

    Aqua Illuminations

    AI Hydra Edge HMS Hanging Kit - AquaIllumination

    AI Hydra Edge HMS Hanging Kit - AquaIllumination Sleek & Adjustable Hanging Kit for Hydra Edge A simple and stylish way to suspend your Hydra Edge 44HD or 68HD LED light fixture above your aquarium. This kit includes everything needed for a secure...

    $42.99
  • AquaIllumination AI HMS Hanging Kit AquaIllumination AI HMS Hanging Kit

    Aqua Illuminations

    AquaIllumination AI HMS Hanging Kit

    AquaIllumination AI HMS Hanging Kit AI HMS Hanging Kit (Fixture Brackets and Rail Sold Seperately) An elegant solution to hang one or multiple Hydras over your tank. Requires a mounting rail to fit your tank, and brackets for each Hydra (sold...

    $42.45
  • AquaIllumination AI Prime Tank Mount, Black AquaIllumination AI Prime Tank Mount, Black AquaIllumination AI Prime Tank Mount, Black

    Aqua Illuminations

    AquaIllumination AI Prime Tank Mount, Black

    AquaIllumination AI Prime Tank Mount, Black The AquaIllumination Prime Tank Mount is an elegant mounting solution on both rimmed and rimless tanks for your AI Prime. The innovative ball joint makes it simple to tilt, turn, and adjust your light to your...

    $40.43
  • JBJ C-Breeze Nano JBJ C-Breeze Nano

    JBJ

    JBJ C-Breeze Nano

    JBJ C-Breeze Nano The new C-Breeze Nano is designed with a powerful centrifugal fan that quietly cools aquariums with a powerful wide stream of air that speeds up evaporative cooling. The low-profile design allows it to be neatly mounted on the side of...

    $40.00
  • ReefBreeders Edge Articulating Mounts

    ReefBreeders

    ReefBreeders Edge Articulating Mounts

    ReefBreeders Edge Articulating Mounts These mounts let you attach Edge Bars directly to the front and back of your Meridian lights using the built-in T-tracks. They’re fully adjustable, allowing you to tilt the lights up to 45 degrees in either...

    $39.99
  • Bubble Magus 2 Cooling Fan Bubble Magus 2 Cooling Fan

    Bubble Magus

    Bubble Magus 2 Cooling Fan

    Bubble Magus 2 Cooling Fan No assembly requiredEasy installation (Clamp mounting bracket) Clamp mounting bracket can fit over aquarium walls up to 1/2" thickExtend Longevity of your lighting systemLow power consumptionAdjustable direction of air...

    $39.95
  • EcoTech Radion XR-30 G6 Diffuser EcoTech Radion XR-30 G6 Diffuser

    EcoTech Marine

    EcoTech Radion XR-30 G6 Diffuser

    EcoTech Radion XR30 G5/G6 Diffuser Compatible with G5 and G6 gen. fixtures. Carefully designed to maximize color mixing while maintaining the sleek look of your XR15 or XR30 Radion fixture. Compatible with all generations of XR15 and XR30 Radions...

    $38.12
  • AquaIllumination AI Prime FLEX Arm 18" AquaIllumination AI Prime FLEX Arm 18"

    Aqua Illuminations

    AquaIllumination AI Prime FLEX Arm 18"

    AquaIllumination AI Prime FLEX Arm 18" Easily mount your AI Prime® on your rimmed or rimless tank with the adjustable Prime Arm Mount. AquaIllumination AI Prime FLEX Arm 18" Easily mount your AI Prime® on your rimmed or rimless tank with...

    $36.37
  • AI Single Module HYDRA Hanging Kit - Black AI Single Module HYDRA Hanging Kit - Black

    Aqua Illuminations

    AI Single Module HYDRA Hanging Kit - Black

    AI Single Module HYDRA Hanging Kit - Black The AquaIllumination Single Module Hanging Kit continues AI`s industry-leading core of modularity and elegant design. Mount single AI modules, or multiple modules connected with EXT rails over your tank. The...

    Was: $42.45
    Now: $36.08
  • AI Single Module HYDRA Hanging Kit - White AI Single Module HYDRA Hanging Kit - White

    Aqua Illuminations

    AI Single Module HYDRA Hanging Kit - White

    AI Single Module HYDRA Hanging Kit - White The AquaIllumination Single Module Hanging Kit continues AI`s industry-leading core of modularity and elegant design. Mount single AI modules, or multiple modules connected with EXT rails over your tank. The...

    Was: $42.45
    Now: $36.08
  • Aquatop SkyAqua Freshwater Mini Clamp-On LED Aquatop SkyAqua Freshwater Mini Clamp-On LED

    AQUATOP

    Aquatop SkyAqua Freshwater Mini Clamp-On LED

    Aquatop SkyAqua Freshwater Mini Clamp-On LED The Aquatop SkyAqua Mini, SAQ-MINI raises the bar for aquarium keepers by combining style and technology. Each specially engineered light mimics the shimmer of natural sunlight, produces minimal heat,...

    $34.99
  • Aquatop SkyAqua Marine Mini Clamp-On LED Aquatop SkyAqua Marine Mini Clamp-On LED

    AQUATOP

    Aquatop SkyAqua Marine Mini Clamp-On LED

    Aquatop SkyAqua Marine Mini Clamp-On LED Bring life and brilliance to your underwater habitat with AquaTops SkyAqua Marine LED Lighting Series! This energy-efficient LED lighting system provides and replicates the shimmer of natural sunlight for a more...

    $34.99
  • Finnex StingRAY 2 - 12" LED Aquarium Light - Silver Finnex StingRAY 2 - 12" LED Aquarium Light - Silver Finnex StingRAY 2 - 12" LED Aquarium Light - Silver Finnex StingRAY 2 - 12" LED Aquarium Light - Silver

    Finnex

    Finnex StingRAY 2 - 12" LED Aquarium Light - Silver

    Finnex StingRAY 2 - 12" LED Aquarium Light - Silver The Finnex Stingray 2 Aquarium LED +Moonlights The Stingray 2 LED series features such a slim hood that it is nearly unseen atop an aquarium. The Stingray 2 offers nearly double the amount of LEDs of...

    $34.85
  • Giesemann 60" Actinic Blue T5 Bulb, 80W Giesemann 60" Actinic Blue T5 Bulb, 80W Giesemann 60" Actinic Blue T5 Bulb, 80W

    Giesemann

    Giesemann 60" Actinic Blue T5 Bulb, 80W

    Giesemann 60" Actinic Blue T5 Bulb, 80W Since most aquarium inhabitants live in seawater depths where the light is very blue, it is needed to simulate this natural living conditions in the aquarium. The Giesemann ACTINIC BLUE has therefore...

    $32.95
  • Giesemann 60" Aqua Blue Coral T5 Bulb, 80W Giesemann 60" Aqua Blue Coral T5 Bulb, 80W Giesemann 60" Aqua Blue Coral T5 Bulb, 80W

    Giesemann

    Giesemann 60" Aqua Blue Coral T5 Bulb, 80W

    Giesemann 60" Aqua Blue Coral T5 Bulb, 80W Light dependent corals in the sea are inhabited by so-called zooxanthellae, single-celled algae, which provide the host through photosynthesis with nutrients. Depending on the natural location of the coral (and...

    $32.95
  • Giesemann 60" Super Actinic T5 Bulb, 80W Giesemann 60" Super Actinic T5 Bulb, 80W Giesemann 60" Super Actinic T5 Bulb, 80W

    Giesemann

    Giesemann 60" Super Actinic T5 Bulb, 80W

    Giesemann 60" Super Actinic T5 Bulb, 80W Some corals reach its beauty and expression only by special fluorescent colors. Like many mussel species these animals will be found in the sea at water depths where specific UV-components are available...

    $32.95
  • Giesemann 60" Super Flora T5 Bulb, 80W Giesemann 60" Super Flora T5 Bulb, 80W Giesemann 60" Super Flora T5 Bulb, 80W

    Giesemann

    Giesemann 60" Super Flora T5 Bulb, 80W

    Giesemann 60" Super Flora T5 Bulb, 80W Giesemann for years has made many attempts to identify a light spectrum, which promotes the growth of aquatic plants as much as possible, and inhibits the growth of algae. Here we detected, that both emergent and...

    $32.95
  • Giesemann 60" Super Purple T5 Bulb, 80W  Giesemann 60" Super Purple T5 Bulb, 80W

    Giesemann

    Giesemann 60" Super Purple T5 Bulb, 80W

    Giesemann 60" Super Purple T5 Bulb, 80W   The Giesemann SUPER PURPLE is a high-performance T5 tube with a very strong white/violet spectrum as a perfect addition to our proven Giesemann PowerChrome tubes. Extensive tests...

    $32.95
  • Giesemann 60" Tropic T5 Bulb, 80W Giesemann 60" Tropic T5 Bulb, 80W

    Giesemann

    Giesemann 60" Tropic T5 Bulb, 80W

    Giesemann 60" Tropic T5 Bulb, 80W The Giesemann PowerChrome TROPIC is one of the few existing lamps that actually produces full spectral components of its entire range from blue to red. Based on this, the Giesemann TROPIC lamps do...

    $32.95
  • AquaIllumination AI Prime FLEX Arm 12" AquaIllumination AI Prime FLEX Arm 12"

    Aqua Illuminations

    AquaIllumination AI Prime FLEX Arm 12"

    AquaIllumination AI Prime FLEX Arm 12" Easily mount your AI Prime® on your rimmed or rimless tank with the adjustable Prime Arm Mount. AquaIllumination AI Prime FLEX Arm 12" Easily mount your AI Prime® on your rimmed or rimless tank with...

    $30.31
  • Kessil Full Angle Adapter Kessil Full Angle Adapter Kessil Full Angle Adapter Kessil Full Angle Adapter

    Kessil

    Kessil Full Angle Adapter

    Kessil Full Angle Adapter The Kessil Full Angle Adapter is a unique solution to reducing shadowing caused by large coral colonies, rockwork, or braces on your tank. The adapter is compatible with the Kessil Mounting Arm, Gooseneck Adapter, and...

    $30.00
  • ATI Aquablue Special 12,000K T5 Bulb, 60" (80W) ATI Aquablue Special 12,000K T5 Bulb, 60" (80W)

    ATI

    ATI Aquablue Special 12,000K T5 Bulb, 60" (80W)

    ATI Aquablue Special 12,000K T5 Bulb, 60" (80W)Combines the properties of a Blue bulb with a full-spectrum daylight bulb producing a color temperature of approximately 12000K. ATI Aquablue Special 12,000K T5 Bulb, 60" (80W) Combines the properties...

    $29.95
  • ATI Blue Plus + T5 Bulb, 60" (80W) ATI Blue Plus + T5 Bulb, 60" (80W) ATI Blue Plus + T5 Bulb, 60" (80W)

    ATI

    ATI Blue Plus + T5 Bulb, 60" (80W)

    ATI Blue Plus + T5 Bulb, 60" (80W) Combines the properties of a Blue bulb with a Actinic Blue 03 bulb producing a unique spectrum that encourages both bluing in SPS corals and fluorescence in capable corals. Also helps balance out a...

    $29.95
  • ATI Coral Plus + T5 Bulb, 60" (80W) ATI Coral Plus + T5 Bulb, 60" (80W) ATI Coral Plus + T5 Bulb, 60" (80W)

    ATI

    ATI Coral Plus + T5 Bulb, 60" (80W)

    ATI Coral Plus + T5 Bulb, 60" (80W)Combines the properties of a Blue Plus (~50%) + Aquablue Special (~40%) + Purple Plus (~10%) producing a bulb with an approximate color temperature of 15000K+. Appears cool, crisp white to the eye. Recommended Use: as a...

    $29.95
  • ATI Purple Plus T5 Bulb, 60" (80W) ATI Purple Plus T5 Bulb, 60" (80W)

    ATI

    ATI Purple Plus T5 Bulb, 60" (80W)

    ATI Purple Plus T5 Bulb, 60" (80W)ATI Purple Plus T5 Bulb, 60" (80W)*Important Shipping Information: Minimum order of 2 (two) T5 lamps, (Mix & Match), to qualify for our standard shipping fees.Product code: 4371Item No. LT-ATI-1131

    $29.95
  • ATI True Actinic 03 T5 Bulb, 60" (80W) ATI True Actinic 03 T5 Bulb, 60" (80W)

    ATI

    ATI True Actinic 03 T5 Bulb, 60" (80W)

    ATI True Actinic 03 T5 Bulb, 60" (80W)Aquarium Lamps. 100% "actinic blue" bulb which produces a spectrum that peaks at 420nm producing a spectrum that encourages ultimate fluorescence and coral enhancement in capable corals. ATI True Actinic 03 T5...

    $29.95
  • Kessil Extended Slide Bar Kessil Extended Slide Bar Kessil Extended Slide Bar Kessil Extended Slide Bar

    Kessil

    Kessil Extended Slide Bar

    Kessil Extended Slide Bar The Extended Slide Bar lengthens the reach of the Mounting Arms by up to 3.5". This accessory gives users with wider tanks (25"-32") the ability to mount their Kessil lights precisely where needed. Easy installation and sturdy...

    $29.00
  • Narrow Reflector for Kessil A360X / A500X - 55 deg. Narrow Reflector for Kessil A360X / A500X - 55 deg. Narrow Reflector for Kessil A360X / A500X - 55 deg. Narrow Reflector for Kessil A360X / A500X - 55 deg. Narrow Reflector for Kessil A360X / A500X - 55 deg.

    Kessil

    Narrow Reflector for Kessil A360X / A500X - 55 deg.

    Narrow Reflector for Kessil A360X / A500X - 55 deg. Dimensions: 3.2" Diameter x 0.7" Height (8.1cm x 1.8cm) Weight: 0.04 lbs Beam angle: 55° Coverage: 20" x 20" area, up to 5` deep Compatible with A360X Tuna Blue, A360X Tuna Sun, and A500X Tuna...

    $29.00
  • AquaIllumination AI Prime Hanging Kit, Black AquaIllumination AI Prime Hanging Kit, Black

    Aqua Illuminations

    AquaIllumination AI Prime Hanging Kit, Black

    AquaIllumination AI Prime Hanging Kit, Black The Prime Hanging Kit from AI is an elegant way to suspend your AI Prime® above your tank. The unique ball joint makes it a snap to tilt and turn your Prime for optimal light coverage. Made of...

    $28.88
  • AquaIllumination AI Prime Hanging Kit, White

    Aqua Illuminations

    AquaIllumination AI Prime Hanging Kit, White

    AquaIllumination AI Prime Hanging Kit, White The Prime Hanging Kit from AI is an elegant way to suspend your AI Prime® above your tank. The unique ball joint makes it a snap to tilt and turn your Prime for optimal light coverage. Made of...

    $28.88
  • Red Sea ReefLED 160S Suspension Kit

    Red Sea

    Red Sea ReefLED 160S Suspension Kit

    Red Sea ReefLED 160S Suspension Kit ReefLED hanging kit enable individual units to be suspended above the aquarium. ReefLED hanging kit enable individual units to be suspended above the aquarium.Product code: 8808Item No. LT-RED35185

    $28.00
  • Red Sea ReefLED 50 Suspension Kit Red Sea ReefLED 50 Suspension Kit

    Red Sea

    Red Sea ReefLED 50 Suspension Kit

    Red Sea ReefLED 50 Suspension Kit Hanging kit including replacement ReefLED 50/90 top cover plate.   Red Sea ReefLED 50 Suspension Kit Hanging kit including replacement ReefLED 50/90 top cover plate.   Product code: 8453Item No...

    $28.00
  • Red Sea ReefLED 90 Suspension Kit Red Sea ReefLED 90 Suspension Kit

    Red Sea

    Red Sea ReefLED 90 Suspension Kit

    Red Sea ReefLED 90 Suspension Kit Hanging kit including replacement ReefLED 50/90 top cover plate.   Red Sea ReefLED 90 Suspension Kit Hanging kit including replacement ReefLED 50/90 top cover plate.   Product code: 8454Item No...

    $28.00
  • Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit Fragtags Parwise Essential Kit

    Seneye

    Fragtags Parwise Essential Kit

    Fragtags Parwise Essential Kit The Fragtags Parwise Essential Kit securely holds the light meter while taking readings throughout the tank without disturbing your coral and fish. Also includes a clip-on eye protector for traveling and storage. ITC...

    $27.99
  • EcoTech Radion XR-15 G6 Diffuser EcoTech Radion XR-15 G6 Diffuser

    EcoTech Marine

    EcoTech Radion XR-15 G6 Diffuser

    EcoTech Radion XR15 G5/G6 Diffuser Compatible with G5 and G6 gen. fixtures. Carefully designed to maximize color mixing while maintaining the sleek look of your XR15 or XR30 Radion fixture.  Radion diffusers install in minutes reusing the same screws...

    $26.57
  • Giesemann 48" Super Actinic T5 Bulb, 54W  Giesemann 48" Super Actinic T5 Bulb, 54W

    Giesemann

    Giesemann 48" Super Actinic T5 Bulb, 54W

    Giesemann 48" Super Actinic T5 Bulb, 54W   Some corals reach its beauty and expression only by special fluorescent colors. Like many mussel species these animals will be found in the sea at water depths where specific UV-components are...

    $25.95
  • Giesemann 48" Super Flora T5 Bulb, 54W Giesemann 48" Super Flora T5 Bulb, 54W

    Giesemann

    Giesemann 48" Super Flora T5 Bulb, 54W

    Giesemann 48" Super Flora T5 Bulb, 54W Giesemann for years has made many attempts to identify a light spectrum, which promotes the growth of aquatic plants as much as possible, and inhibits the growth of algae. Here we detected, that both emergent and...

    $25.95
  • Kessil 90 Degree K-Link Cable Kessil 90 Degree K-Link Cable Kessil 90 Degree K-Link Cable

    Kessil

    Kessil 90 Degree K-Link Cable

    Kessil 90 Degree K-Link Cable The 90 Degree K-Link Cable connects the Kessil A360x to each other or to the Spectra Controller x. Length: 10' (Excluding connectors) Plug Types: USB Type-C connector to USB Type-C Connector Color:...

    $25.00
  • Kessil Mini Goose-Neck - Fits 80 Series Fixtures Kessil Mini Goose-Neck - Fits 80 Series Fixtures Kessil Mini Goose-Neck - Fits 80 Series Fixtures Kessil Mini Goose-Neck - Fits 80 Series Fixtures

    Kessil

    Kessil Mini Goose-Neck - Fits 80 Series Fixtures

    Kessil Mini Goose-Neck - Fits 80 Series Fixtures The Mini Gooseneck is designed to securely mount our A80 and H80 fixtures over tanks without a canopy.Kessil Mini Goose-Neck - Fits 80 Series Fixtures The Mini Gooseneck is designed to securely mount our...

    $25.00
  • EcoTech Marine XR30 High Intensity Lens Kit EcoTech Marine XR30 High Intensity Lens Kit EcoTech Marine XR30 High Intensity Lens Kit

    EcoTech Marine

    EcoTech Marine XR30 High Intensity Lens Kit

    EcoTech Marine XR30 High Intensity Lens Kit Optimize Your Radion: The Right Lens Kit for Every Aquarium Ideal for Deep Aquariums or High Radion Mounting Higher PAR, Narrower Focus Compatible with G5 and G6 Radions The EcoTech Radion High Intensity Kit...

    $24.99
  • ATI Coral Plus + T5 Bulb, 48" (54W) ATI Coral Plus + T5 Bulb, 48" (54W) ATI Coral Plus + T5 Bulb, 48" (54W)

    ATI

    ATI Coral Plus + T5 Bulb, 48" (54W)

    ATI Coral Plus + T5 Bulb, 48" (54W)Combines the properties of a Blue Plus (~50%) + Aquablue Special (~40%) + Purple Plus (~10%) producing a bulb with an approximate color temperature of 15000K+. Appears cool, crisp white to the eye. Recommended Use: as a...

    $24.95
  • ATI True Actinic 03 T5 Bulb, 48" (54W) ATI True Actinic 03 T5 Bulb, 48" (54W)

    ATI

    ATI True Actinic 03 T5 Bulb, 48" (54W)

    ATI True Actinic 03 T5 Bulb, 48" (54W) 100% "actinic blue" bulb which produces a spectrum that peaks at 420nm producing a spectrum that encourages ultimate fluorescence and coral enhancement in capable corals. Recommended Use: as a supplement to...

    $24.95
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