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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.

  • AquaIllumination AI HMS Rail - 36"

    Aqua Illuminations

    AquaIllumination AI HMS Rail - 36"

    AquaIllumination AI HMS Rail - 36" AI HMS 36" (37.5") Horizontal Rail (fixture Brackets Sold Separately) AquaIllumination AI HMS Rail - 36" AI HMS 36" (37.5") Horizontal Rail (fixture Brackets Sold Separately) Product code: 6138Item No...

    $72.77
  • Finnex StingRAY 2 - 48" LED Aquarium Light - Silver Finnex StingRAY 2 - 48" LED Aquarium Light - Silver Finnex StingRAY 2 - 48" LED Aquarium Light - Silver Finnex StingRAY 2 - 48" LED Aquarium Light - Silver

    Finnex

    Finnex StingRAY 2 - 48" LED Aquarium Light - Silver

    Finnex StingRAY 2 - 48" 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...

    $72.76
  •  Finnex FugeRay Planted Plus U20WM  Finnex FugeRay Planted Plus U20WM  Finnex FugeRay Planted Plus U20WM  Finnex FugeRay Planted Plus U20WM

    Finnex

    Finnex FugeRay Planted Plus U20WM

     Finnex FugeRay Planted Plus U 20" 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...

    $89.95
    $71.99
  •  CPR Small LED Refugium Fixture 7W - 12.5" long  CPR Small LED Refugium Fixture 7W - 12.5" long  CPR Small LED Refugium Fixture 7W - 12.5" long  CPR Small LED Refugium Fixture 7W - 12.5" long  CPR Small LED Refugium Fixture 7W - 12.5" long

    CPR

    CPR Small LED Refugium Fixture 7W - 12.5" long

     CPR Small LED Refugium Fixture 7W - 12.5" long CPR LED Refugium Light, small Designed for AquaFuge2 (small) and AquaFuge PS (small) Low power consumption Inline power switch Low profile design Reduced light leak Included stands fit both...

    $69.99
  • Finnex Planted+ 24/7 HLC - 24" Aquarium LED Light Finnex Planted+ 24/7 HLC - 24" Aquarium LED Light Finnex Planted+ 24/7 HLC - 24" Aquarium LED Light Finnex Planted+ 24/7 HLC - 24" Aquarium LED Light Finnex Planted+ 24/7 HLC - 24" Aquarium LED Light

    Finnex

    Finnex Planted+ 24/7 HLC - 24" Aquarium LED Light

    Finnex Planted+ 24/7 HLC - 24" Aquarium LED Light 24/7 CC Mode: Fully Customizable Sunrise & Sunset Razor thin eye CATCHING aluminum hood Hands Free: Simulating Fire Red Sunrise to Blue Starry Night Built in LED Sensor  The Finnex...

    $69.99
  • Pico Refugium LED - ReefBreeders Pico Refugium LED - ReefBreeders Pico Refugium LED - ReefBreeders Pico Refugium LED - ReefBreeders

    ReefBreeders

    Pico Refugium LED - ReefBreeders

    Pico Refugium LED - ReefBreeders The ReefBreeders Refugium LED is the perfect solution for lighting your refugium. They are affordable and simple to use and install. Every Refugium LED includes a built in mounting bracket and a simple on/off switch...

    $69.99
  • ReefBreeders Meridian Edge / Side of Tank Mount

    ReefBreeders

    ReefBreeders Meridian Edge / Side of Tank Mount

    ReefBreeders Meridian Edge / Side of Tank Mount The Meridian Side-of-Tank Mounts are a practical and adjustable solution for mounting your Meridian light. These sturdy legs extend from either side of the light, making it compatible with tanks up...

    $69.99
  • ReefBreeders Pico LED - Saltwater ReefBreeders Pico LED - Saltwater ReefBreeders Pico LED - Saltwater ReefBreeders Pico LED - Saltwater

    ReefBreeders

    ReefBreeders Pico LED - Saltwater

    ReefBreeders Pico LED The all new 2023 model year ReefBreeders Pico LED has been overhauled from the bottom up- making it one of the best options for small aquariums out there! One major change is the new controller- we developed an advanced yet simple...

    $69.99
  • Bubble Magus 6 Cooling Fan Bubble Magus 6 Cooling Fan

    Bubble Magus

    Bubble Magus 6 Cooling Fan

    Bubble Magus 6 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...

    $69.95
  • Finnex StingRAY 2 - 36" LED Aquarium Light - Silver Finnex StingRAY 2 - 36" LED Aquarium Light - Silver Finnex StingRAY 2 - 36" LED Aquarium Light - Silver Finnex StingRAY 2 - 36" LED Aquarium Light - Silver

    Finnex

    Finnex StingRAY 2 - 36" LED Aquarium Light - Silver

    Finnex StingRAY 2 - 36" 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...

    $68.13
  • Finnex Stingray 3.0 36" Aquarium LED Light - 26W Finnex Stingray 3.0 36" Aquarium LED Light - 26W Finnex Stingray 3.0 36" Aquarium LED Light - 26W Finnex Stingray 3.0 36" Aquarium LED Light - 26W Finnex Stingray 3.0 36" Aquarium LED Light - 26W

    Finnex

    Finnex Stingray 3.0 36" Aquarium LED Light - 26W

    Finnex Stingray 3.0 36" Aquarium LED Light - 26W 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...

    $67.99
  • Aquatop SkyAqua Actinic Blue LED 24"-30"

    AQUATOP

    Aquatop SkyAqua Actinic Blue LED 24"-30"

    Aquatop SkyAqua Actinic Blue LED 24"-30" AQUATOP SAQB-2430 SkyAqua Actinic Blue 24"-30" LED Aquarium Light Bring life and color to your underwater habitat with the Aquatop SkyAqua Actinic Blue LED Lighting Series! This energy efficient LED lighting...

    $65.99
  •  Finnex FugeRay Planted Plus U16WM  Finnex FugeRay Planted Plus U16WM  Finnex FugeRay Planted Plus U16WM  Finnex FugeRay Planted Plus U16WM

    Finnex

    Finnex FugeRay Planted Plus U16WM

    Finnex FugeRay Planted Plus U 16" 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...

    $74.95
    $64.99
  • Finnex Planted+ 24/7 HLC - 20" Aquarium LED Light Finnex Planted+ 24/7 HLC - 20" Aquarium LED Light Finnex Planted+ 24/7 HLC - 20" Aquarium LED Light Finnex Planted+ 24/7 HLC - 20" Aquarium LED Light

    Finnex

    Finnex Planted+ 24/7 HLC - 20" Aquarium LED Light

    Finnex Planted+ 24/7 HLC - 20" Aquarium LED Light 24/7 CC Mode: Fully Customizable Sunrise & Sunset Razor thin eye CATCHING aluminum hood Hands Free: Simulating Fire Red Sunrise to Blue Starry Night Built in LED Sensor  The Finnex...

    $64.99
  • Finnex StingRAY 2 - 30" LED Aquarium Light - Silver Finnex StingRAY 2 - 30" LED Aquarium Light - Silver Finnex StingRAY 2 - 30" LED Aquarium Light - Silver Finnex StingRAY 2 - 30" LED Aquarium Light - Silver

    Finnex

    Finnex StingRAY 2 - 30" LED Aquarium Light - Silver

    Finnex StingRAY 2 - 30" 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...

    $63.20
  • 7-Day Rental - ITC Reefculture PARwise Pro 7-Day Rental - ITC Reefculture PARwise Pro 7-Day Rental - ITC Reefculture PARwise Pro 7-Day Rental - ITC Reefculture PARwise Pro

    Seneye

    7-Day Rental - ITC Reefculture PARwise Pro

    7-Day Rental - ITC Reefculture PARwise Pro PAR meter rental period is 7 days from the day it is delivered to your door to the day the return tracking number becomes active, so you get a full week to tune your lights! If you need to keep the meter...

    $59.99
  • AquaIllumination Blade LED Hybrid Mounting Kit AquaIllumination Blade LED Hybrid Mounting Kit AquaIllumination Blade LED Hybrid Mounting Kit

    Aqua Illuminations

    AquaIllumination Blade LED Hybrid Mounting Kit

    AquaIllumination Blade LED Hybrid Mounting Kit Add 2 Blade LEDs to your Radion or Hydra LEDs Reduce shadows & add color pop Increase PAR without creating hot spots Mount your way! AquaIllumination's Blade LED Hybrid Mounting Kit is just one...

    $59.99
  • Finnex Stingray 3.0 30" Aquarium LED Light - 22W Finnex Stingray 3.0 30" Aquarium LED Light - 22W Finnex Stingray 3.0 30" Aquarium LED Light - 22W Finnex Stingray 3.0 30" Aquarium LED Light - 22W Finnex Stingray 3.0 30" Aquarium LED Light - 22W

    Finnex

    Finnex Stingray 3.0 30" Aquarium LED Light - 22W

    Finnex Stingray 3.0 30" Aquarium LED Light - 22W 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...

    $59.99
  • Photon Link Kit Photon Link Kit

    ReefBreeders

    Photon Link Kit

    Photon Link Kit The Photon Link Kit enables you to connect your 2 Photon 32-V2/+ lights to cover your 6 foot aquarium using the included mounting legs. It is also compatible with other lengths of Photon V2 lights.The Photon Link Kit consists of 2 31″...

    $59.99
  • Extension Kit for Kessil Mounting Arm Extension Kit for Kessil Mounting Arm Extension Kit for Kessil Mounting Arm Extension Kit for Kessil Mounting Arm

    Kessil

    Extension Kit for Kessil Mounting Arm

    Extension Kit for Kessil Mounting Arm The Extension Mount is designed to be used with the Mounting Arm and provides customers with additional mounting option. It is designed specifically for acrylic or euro-braced tanks, by affixing the mounting arms to...

    $59.00
  • Kessil AP9X Mounting Arm Extended Slide Bar Kessil AP9X Mounting Arm Extended Slide Bar Kessil AP9X Mounting Arm Extended Slide Bar

    Kessil

    Kessil AP9X Mounting Arm Extended Slide Bar

    Kessil AP9X Mounting Arm Extended Slide Bar The AP9 Mounting Arm Extended Slide Bar extends the reach of the AP9 mounting arm by up to 8” (18" total distance from the back of the tank to the lamp). This accessory allows users with wider tanks (up to...

    $59.00
  • Finnex Stingray 3.0 24" Aquarium LED Light - 16W Finnex Stingray 3.0 24" Aquarium LED Light - 16W Finnex Stingray 3.0 24" Aquarium LED Light - 16W Finnex Stingray 3.0 24" Aquarium LED Light - 16W Finnex Stingray 3.0 24" Aquarium LED Light - 16W

    Finnex

    Finnex Stingray 3.0 24" Aquarium LED Light - 16W

    Finnex Stingray 3.0 24" Aquarium LED Light - 16W 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...

    $56.99
  • Finnex StingRAY 2 - 24" LED Aquarium Light - Silver Finnex StingRAY 2 - 24" LED Aquarium Light - Silver Finnex StingRAY 2 - 24" LED Aquarium Light - Silver Finnex StingRAY 2 - 24" LED Aquarium Light - Silver

    Finnex

    Finnex StingRAY 2 - 24" LED Aquarium Light - Silver

    Finnex StingRAY 2 - 24" 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...

    $56.87
  • Bubble Magus 4 Cooling Fan Bubble Magus 4 Cooling Fan

    Bubble Magus

    Bubble Magus 4 Cooling Fan

    Bubble Magus 4 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...

    $54.95
  • AquaIllumination AI HMS Rail - 24"

    Aqua Illuminations

    AquaIllumination AI HMS Rail - 24"

    AquaIllumination AI HMS Rail - 24" AI HMS 24" (25.5") Horizontal Rail (fixture Brackets Sold Separately) AquaIllumination AI HMS Rail - 24" AI HMS 24" (25.5") Horizontal Rail (fixture Brackets Sold Separately) Product code: 6137Item No...

    $54.57
  • Finnex StingRAY 2 - 20" LED Aquarium Light - Silver Finnex StingRAY 2 - 20" LED Aquarium Light - Silver Finnex StingRAY 2 - 20" LED Aquarium Light - Silver Finnex StingRAY 2 - 20" LED Aquarium Light - Silver

    Finnex

    Finnex StingRAY 2 - 20" LED Aquarium Light - Silver

    Finnex StingRAY 2 - 20" 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...

    $53.51
  • Reef Octopus 4" Smart Fan Reef Octopus 4" Smart Fan Reef Octopus 4" Smart Fan Reef Octopus 4" Smart Fan Reef Octopus 4" Smart Fan

    Reef Octopus

    Reef Octopus 4" Smart Fan

    Reef Octopus 3" Smart Fan The Reef Octopus USB Smart Fan will automatically increase or decrease the fan speed depending on the ambient temperature of the area surrounding the thermostat. Makes and excellent choice for aquarium canopies, enclosed stands...

    $51.96
  • ReefBreeders Meridian Hanging Wire Set

    ReefBreeders

    ReefBreeders Meridian Hanging Wire Set

    ReefBreeders Meridian Hanging Wire Set The Meridian hanging wire sets are black coated stainless steel, and adjust from 6" to 9.5 Feet above the light and end at a black carabiner. Excess cable can be trimmed if needed.  3 sets are required for the...

    $49.99
  • ReefBreeders Meridian Manual Controller ReefBreeders Meridian Manual Controller ReefBreeders Meridian Manual Controller ReefBreeders Meridian Manual Controller

    ReefBreeders

    ReefBreeders Meridian Manual Controller

    ReefBreeders Meridian Manual Controller Take full control of your Meridian lights with the Meridian Manual Controller, offering simple, direct operation without the need for an app or wireless network. Plug it into the dedicated port on top of your...

    $49.99
  • ReefBreeders Photon Edge Mounting Set ReefBreeders Photon Edge Mounting Set

    ReefBreeders

    ReefBreeders Photon Edge Mounting Set

    ReefBreeders Photon Edge Mounting Set This kit allows mounting one edge bar on either side of the Photon V2, 2 edge Bars total. One set works with all size Photons/Edge Bars. Includes all hardware neccessary to mount 2 Edge Bars to your Photon- 2...

    $49.99
  • Hanging Kit for Kessil AP9X / AP700 fixture Hanging Kit for Kessil AP9X / AP700 fixture

    Kessil

    Hanging Kit for Kessil AP9X / AP700 fixture

    Hanging Kit for Kessil AP9X/AP700 fixture The Hanging Kit allows the AP9 / AP700 to be hung from your ceiling or even within your canopy. The Hanging Kit comes with two 118" long hanging cables, two toggle bolts, and two tapping screws, allowing the...

    $49.00
  • Finnex Stingray 3.0 18" Aquarium LED Light - 12W Finnex Stingray 3.0 18" Aquarium LED Light - 12W Finnex Stingray 3.0 18" Aquarium LED Light - 12W Finnex Stingray 3.0 18" Aquarium LED Light - 12W Finnex Stingray 3.0 18" Aquarium LED Light - 12W

    Finnex

    Finnex Stingray 3.0 18" Aquarium LED Light - 12W

    Finnex Stingray 3.0 18" Aquarium LED Light - 12W 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...

    $48.99
  • Aquatop SkyAqua Actinic Blue LED 18"-24"

    AQUATOP

    Aquatop SkyAqua Actinic Blue LED 18"-24"

    Aquatop SkyAqua Actinic Blue LED 18"-24" AQUATOP SAQB-1824 SkyAqua Actinic Blue 18"-24" LED Aquarium Light Bring life and color to your underwater habitat with the Aquatop SkyAqua Actinic Blue LED Lighting Series! This energy efficient LED lighting...

    $47.99
  • EcoTech RMS Hanging Kit EcoTech RMS Hanging Kit

    EcoTech Marine

    EcoTech RMS Hanging Kit

    EcoTech RMS Hanging Kit The RMS Hanging Kit provides yet more versatility to the already highly flexible RMS system. With the RMS hanging kit you can suspend a RMS track holding multiple slides and Radions over your aquarium. Ideal for situations...

    $47.30
  • Reef Octopus 3" Smart Fan Reef Octopus 3" Smart Fan Reef Octopus 3" Smart Fan Reef Octopus 3" Smart Fan Reef Octopus 3" Smart Fan

    Reef Octopus

    Reef Octopus 3" Smart Fan

    Reef Octopus 3" Smart Fan The Reef Octopus USB Smart Fan will automatically increase or decrease the fan speed depending on the ambient temperature of the area surrounding the thermostat. Makes and excellent choice for aquarium canopies, enclosed stands...

    $46.19
  • Finnex StingRAY 2 - 16" LED Aquarium Light - Silver Finnex StingRAY 2 - 16" LED Aquarium Light - Silver Finnex StingRAY 2 - 16" LED Aquarium Light - Silver Finnex StingRAY 2 - 16" LED Aquarium Light - Silver

    Finnex

    Finnex StingRAY 2 - 16" LED Aquarium Light - Silver

    Finnex StingRAY 2 - 16" 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...

    $45.79
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