Best Coral LED Lights (with PAR) for Nano to Large & Deep Reef Aquariums

Updated: March 24, 2025 - By: - Categories: Reef aquarium

Lighting stands as a cornerstone of success in reef aquariums, a factor that every hobbyist must carefully calibrate to foster a vibrant coral ecosystem. Unlike freshwater setups, reef tanks demand a specialized approach to illumination, tailored to the photosynthetic needs of corals. Navigating the vast array of LED options can be intimidating, given the stringent requirements imposed by different coral types and tank dimensions. This comprehensive guide spotlights top-tier LED lights—complete with Photosynthetically Active Radiation (PAR) data—offering a robust foundation for your selection process, though further research into your tank’s unique profile is highly recommended.

From compact nano reefs to sprawling deep-water systems, modern LED technology has transformed coral care, delivering energy efficiency, customizable spectrums, and pinpoint intensity control. Whether you’re cultivating soft corals in a small cube or nurturing high-light Small Polyp Stony (SPS) corals in a grand display, this article dives deep into the best options available, ensuring your underwater world thrives with color and vitality.

[PAR Comparison Table] Best LED Reef Lights

Model Our Rating PAR Ideal for Coverage LEDs Controller Wattage
Fluval Sea Marine Nano Bluetooth LED editor's ratingFluval Sea Marine Nano Bluetooth LED #ad 75 @ 12-inch, 212 @ 6-inch, 600 @ 3-inch FOWLR, macroalgae, soft and LPS corals nano cube reef up to 15 gallons 100 pcs total mobile app, 24-hour light cycle, preset modes 20 watts
Nicrew 30W Nano Reef LED Aquarium Light editor's ratingNicrew 30W Nano Reef LED Aquarium Light #ad 100 @ 24-inch depth soft, LPS, SPS corals 18 x 18″ (optimal) 5 x Blue, 5 x Royal Blue, 1 x Violet, 1 x UV, 4 x Cool White, 1 x Green, 1 x Red inline timer, all on/ blue only/ white only 30 watts
Lominie Reef Pixie30 nano reef light editor's ratingLominie Reef Pixie30 nano reef light #ad 100 @ 18-inch depth soft & LPS corals 24 x 24″ (max) 24 pcs remote for dimming, no timer 26-30 watts
NICREW Saltwater Aquarium Light 30-inch editor's ratingNICREW Saltwater Aquarium Light 30-inch #ad 110 @ 12-inch depth saltwater fish, live rock, macroalgae, soft and LPS corals 30-36″ (18-60″ available) 57 x White, 48 Blue, 12 RGB – 2 channels dual channel timer, dimmable 32 watts
Nicrew HyperReef 150 aquarium light editor's ratingNicrew HyperReef 150 aquarium light #ad 305 @ 28″ most types of corals 24 x 24″ (optimal), 30 x 30″ (max) 72 LEDs, 2 channels controller ready (sold separately) 150 watts (30/50/100W available)
AquaIllumination Hydra 64 HD LED Reef Light editor's ratingAquaIllumination Hydra 64 HD LED Reef Light #ad 230 @ 24-inch high-light corals, clams, high-light SPS 24 x 24″ (optimal) 64 pcs + 4 UV mobile app, schedule mode, manual mode, acclimation 135 watts
ViparSpectra 165W LED light editor's ratingViparSpectra 165W LED light #ad 325 @ 24-inch depth most types of corals, clams, high light SPS 24 x 24″ (optimal) 24 x 30″ (max) 55 LEDs, two channels blue and white remote, timing, dimming 165 watts
Current USA Orbit Marine IC Pro 72-inch editor's ratingCurrent USA Orbit Marine IC Pro 72-inch #ad 100 @ 21-inch depth softies, LPS, low-light SPS 72 inches (18-72″ available) 288 LEDs, two channels mobile app control via Bluetooth 144 watts
Kessil A360WE Controllable LED Tuna Blue editor's ratingKessil A360WE Controllable LED Tuna Blue #ad designed for deep penetration most types of corals 24 x 24″ (optimal) densely-packed LEDs controller sold separately 90 watts
Kessil AP9X LED Aquarium Light With Built-in WiFi editor's ratingKessil AP9X LED Aquarium Light With Built-in WiFi #ad designed for deep penetration high light corals 48″ x 24″ (max) densely-packed LEDs WiFi app control, adjustable schedules, manual mode, acclimation 180 watts
Red Sea REEFLED 90 LED Light Fixture editor's ratingRed Sea REEFLED 90 LED Light Fixture #ad 150 @ 20″ high light reef 24 x 24 inches (recommended) compact array with 9000K white, blue, violet, and UV Wifi app control, multi presets, acclimation program 90 watts
Relassy Aquarium Led Light 300W editor's ratingRelassy Aquarium Led Light 300W #ad – high demanding SPS, high hanging deep reefs, one unit for every 24-30″ 338 pcs, 3 channels remote with dimmer & timer functions 300 watts
DSunY 3X LED Reef Light editor's ratingDSunY 3X LED Reef Light #ad – high demanding SPS 72-inch reef 40 LEDs, 4 channels timer controller, preset modes 110 watts each unit

How to Choose LED Lights for Reef Aquariums?

reef-aquarium-led-light

Selecting the ideal LED light for your reef aquarium hinges on understanding the corals you keep. Fish-Only With Live Rock (FOWLR) setups require minimal lighting, while reef tanks housing soft and Large Polyp Stony (LPS) corals need moderate levels, and SPS corals—especially Acropora—demand intense illumination, often exceeding 500 PAR. This diversity underscores the need for a tailored approach, balancing coral health with visual appeal.

Several factors shape your decision: the light’s spectrum (favoring blue for coral photosynthesis), its intensity (measured in PAR), and its coverage relative to your tank’s size. Beyond these, practical considerations like dimming capabilities, heat management, and control options play a role. Let’s break down the key parameters to guide your choice.

Choosing the Right Type – Color Temperature (Kelvin Rating)

color-temperature

Kelvin ratings (1,000-12,000) and corresponding light colors (wikipedia.org)

Color temperature, expressed in Kelvin (K), defines the hue of light emitted by an LED fixture. In natural reef environments, deeper waters filter sunlight, leaving predominantly blue wavelengths (higher Kelvin ratings) that corals have evolved to utilize. Shallower corals encounter a broader spectrum, including whites and yellows, but blue remains critical for photosynthesis.

While corals can grow under white light (around 6500K), this often dulls their vibrancy, yielding yellowish tones less appealing to hobbyists. White light also fuels algae growth, which competes with corals for nutrients. Higher Kelvin ratings—10,000K to 20,000K—shift the spectrum toward blue, enhancing coral fluorescence and producing stunning colors like purples, greens, and pinks. This range strikes a balance: sufficient blue for photosynthesis, reduced white to limit algae, and a captivating aesthetic.

For new setups, mimic the lighting conditions of the store or supplier where you sourced your corals, then gradually adjust. Start with 10,000K for a blend of growth and coloration, increasing to 14,000K or 20,000K if prioritizing vivid hues. This acclimation prevents stress, allowing corals to adapt to their new environment seamlessly.

Enough Quantity/Intensity – PAR

PAR measurements of a ViparSpectra fixturePAR measurements of a ViparSpectra fixture #ad

Photosynthetically Active Radiation (PAR) measures the light available for coral photosynthesis, quantified in micromoles per square meter per second (μMol/m²/s). PAR varies with depth and distance from the light source—closer spots receive higher values, while deeper areas see a drop-off. Matching PAR to your corals’ needs is essential, as both too little and too much light can harm them.

Positioning is key. High-light corals like SPS thrive near the surface under intense PAR, while soft corals and LPS prefer lower levels deeper in the tank. Excessive PAR can lead to bleaching—where corals expel their symbiotic zooxanthellae—while insufficient light stunts growth. Manufacturers often provide PAR charts, but online forums and reefer communities can supplement this data if specifics are lacking.

How Much Light (PAR) for Soft/LPS/SPS Corals?

Species PAR Range (μMol/m²/s)
Fish Only with Live Rock (FOWLR) just bright enough
Macroalgae 30-50
Low Light LPS 50-100
Soft Corals, Mushroom, Most LPS 100-150
Zoanthids, Palythoas, Several LPS 150-200
Derasa Clams, Anemones, Several SPS 250-300
Montipora and Other SPS 300-400
Crocea and Maxima Clams, Acropora SPS 400-500+

This table offers a starting point for lighting various reef inhabitants. Begin with the lower end of the PAR range for your corals, especially if their prior conditions are unknown, then incrementally increase over weeks to avoid shock. For precise control, a PAR meter—like the Apogee model with its waterproof sensor—can measure exact levels, though it’s an investment worth considering for serious reefers.

How Many Watts Per Gallon for Reef LED Lights?

PAR @ 12-inch Depth PAR @ 24-inch Depth Estimated Watt/Gallon
30-50 (macroalgae, refugium) 0.5-0.7 W/GAL
100-150 (soft corals, mushroom, most LPS) 30-50 (macroalgae) 0.8-1.2 W/GAL
150-300 (Zoanthids, Palythoas, high-light LPS) 50-100 (low light LPS) 1.2-2.5 W/GAL
300-450 (Montipora and other SPS) 100-150 (soft corals, mushroom, most LPS) 2.5-4 W/GAL
450-600 (Crocea and Maxima clams, Acropora SPS) 150-200 (Zoanthids, Palythoas, several LPS) 4-5 W/GAL
250-300 (Derasa clams, anemones, several low-light SPS) 6-8 W/GAL

If PAR data is unavailable, the watts-per-gallon metric offers a rough estimate for LED reef lights. This guide reflects averages from popular models, though it’s less precise than PAR. For mixed reefs, 3-4 watts per gallon often suffices, provided corals are strategically placed to receive their ideal light levels. Adjust based on tank depth and coral placement for optimal results.

Other Factors to Consider

These elements collectively shape your lighting experience, balancing functionality with enjoyment. A well-chosen LED not only sustains your reef but elevates its beauty.

Nano Reef Tank LED Light Review

Fluval Sea Marine Nano Bluetooth LED 20-Watt

The Fluval Sea Marine Nano LED shines as a top pick for nano reef enthusiasts, blending compact design with robust functionality. Engineered for coral growth, its PAR peaks at 600 near the surface, dropping to 75 at 12 inches—ideal for small tanks hosting FOWLR setups or low-to-moderate light corals like softies and LPS. Its 100 LEDs deliver a balanced spectrum, promoting both health and subtle coloration.

Control comes via the Fluval Smart app, a user-friendly platform offering a 24-hour programmable cycle. Preset habitat modes—like tropical reef or deep ocean—let you tailor light to your tank’s vibe, while color sliders fine-tune intensity and hue. This flexibility makes it a standout for beginners and seasoned hobbyists alike.

Installation is a breeze with an adjustable bracket and swivel arm, ensuring every corner of your nano cube gets ample light. While its output suits smaller volumes, its versatility and ease of use make it a reliable choice for desktop reefs seeking simplicity without sacrificing quality.

Nicrew 30W Nano Reef LED Aquarium Light

Nicrew’s 30W Nano Reef LED brings impressive versatility to nano setups, boasting a PAR of 100 at 24 inches—sufficient for soft corals, LPS, and even some SPS in shallow tanks. Its 18-LED array spans a full spectrum, from blues and UV to whites and reds, enhancing coral fluorescence and fish vibrancy. This broad coverage suits tanks up to 18 inches square, making it a compact yet potent option.

The inline timer offers three modes—all on, blue only, or white only—with 8/10/12-hour settings. For sunrise/sunset effects, pair it with Nicrew’s optional Dual Channel timer. Intensity adjusts from 5% to 100% across two channels, giving you control over spectrum and brightness to match your corals’ needs.

Mounting options include a steel wire suspension or gooseneck clamp, both included, ensuring a snug fit on rimmed or rimless tanks. A smart heat management system keeps it cool and durable, making this light a practical, high-value choice for nano reef keepers aiming to grow a diverse coral collection.

Lominie Reef Pixie30 Nano Reef Light

The Lominie Pixie30 offers an affordable entry into nano reef lighting, delivering a PAR of 100 at 18 inches across a generous 24-inch spread. Its 24 LEDs—spanning blue, royal blue, white, red, green, and UV—provide a full spectrum that highlights coral colors while supporting soft and LPS growth. A 90-degree lens ensures deep penetration and even distribution, illuminating every nook of your cube.

Four dimmable channels adjust from 0% to 100% via a remote, though a separate WiFi controller is needed for scheduling. Its fan-less aluminum design dissipates heat silently, maintaining temperatures below 50°C for longevity. Paired with a flexible gooseneck mount, it’s a quiet, adaptable choice for 18- to 24-inch reefs seeking value and performance.

Medium-Large Reef Tank LED Light Review

NICREW Saltwater Aquarium LED Light, Budget Option

This NICREW fixture caters to medium reefs with a PAR of 110 at 12 inches, perfect for soft corals, LPS, and macroalgae across 30- to 36-inch tanks. Its 117 LEDs—split into white and blue/RGB channels—offer a vibrant spectrum, dimmable via a dual-channel timer with sunrise/sunset effects. Adjustable brackets fit various tank sizes, with additional lengths from 18 to 60 inches available.

It’s a budget-friendly all-in-one solution, blending ease of setup with solid performance. Ideal for beginners, it supports a range of low-to-moderate light species, delivering consistent illumination for growing reefs without complexity.

Nicrew HyperReef 150 – Cheap and High Output

The HyperReef 150 punches above its weight, boasting a PAR of 305 at 28 inches—enough for SPS near the surface—across a 24- to 30-inch spread. Its 72 LEDs split into blue and white channels create a shimmering full spectrum, adjustable manually or via an optional controller. Smart fans ensure quiet cooling, while tank mounts and hanging kits offer versatile installation.

Available in 30W to 150W variants, it scales to your tank’s needs, making it a cost-effective powerhouse for medium reefs aiming to support diverse coral growth.

AquaIllumination Hydra 64 HD LED Reef Light

The Hydra 64 HD delivers premium performance with a PAR of 230 at 24 inches, driven by 68 LEDs including UV for enhanced fluorescence. Its myAI app offers schedule, manual, and acclimation modes, with customizable 24-hour cycles and color sliders. Geometric lenses reduce color separation, ensuring even coverage over 24 inches.

Ideal for high-light SPS and clams, it’s a sophisticated choice for medium reefs prioritizing precision and coral health, with scalable options for smaller setups.

ViparSpectra 165W LED Light for High Light SPS Corals

With a PAR of 325 at 24 inches, the ViparSpectra 165W excels for SPS and clams across 24- to 30-inch spans. Its 55 LEDs balance blue and white channels, adjustable via remote with independent timers. Dual quiet fans and hanging kits ensure longevity and easy setup, making it a reliable pick for medium-to-large reefs demanding intense light.

Current USA Orbit Marine IC Pro up to 72-inch

Spanning 72 inches with a PAR of 100 at 21 inches, this fixture suits large reefs with soft corals and low-light SPS. Its 288 LEDs and wide-angle lenses ensure uniform light, while the Bluetooth app offers preset cycles, weather effects, and wave pump integration. Adjustable brackets fit 18- to 72-inch tanks, making it a versatile, user-friendly option for expansive setups.

Kessil A360WE Tuna Blue Controllable LED Aquarium Light

The A360WE’s dense LED array excels in deep penetration across 24 inches, with manual knobs for intensity and spectrum control. An optional spectral controller enables daisy-chaining for larger setups. Its quiet, compact design and shimmer effect mimic natural reefs, making it a flexible choice for medium tanks.

Kessil AP9X LED Aquarium Light With Built-in WiFi

The AP9X spans 48 by 24 inches with deep-penetrating light, ideal for SPS in 3- to 4-foot reefs. Its 55 LEDs, enhanced by violet channels, blend colors vividly, controlled via a WiFi app with lunar cycles and weather effects. Sleek and powerful, it’s a premium pick for large, high-light setups.

Red Sea REEFLED 90 LED Light Fixture with RL90 Mounting Arm

The REEFLED 90 offers a PAR of 150 at 20 inches, blending 23,000K blues with 9000K whites and a moonlight channel. Its anti-glare lens ensures even spread over 24 inches, while the ReefBeat app provides presets and cloud effects. Compact yet potent, it’s perfect for high-light reefs in medium tanks.

Relassy Aquarium LED Light 300W for High Hanging

With 338 LEDs across three channels, the Relassy 300W penetrates deep reefs, ideal for SPS in large, high-hung setups. Its remote adjusts intensity to 25% and sets 6/12/18-hour cycles. A fan-less cooling system keeps it silent, paired with hanging kits for easy installation.

DSunY 3X LED Reef Light for 72-inch Reef

This trio of 110W units covers 72-inch reefs with a full spectrum from 40 LEDs per fixture. A 120-degree lens ensures even spread, while the smart controller offers customizable schedules and weather effects. Hanging kits and rail mounts simplify setup for large SPS-driven tanks.

Which Light Schedule is Best for Reef Tanks?

A lighting schedule mimics the ocean’s natural rhythm, balancing coral health with viewing enjoyment. Most reefs thrive on 9-12 hours of light daily, adjusted by intensity. High PAR setups (e.g., 400-500 for SPS) may need only 9 hours, while lower PAR (100-150 for soft corals) can extend to 12. Sample schedules include 8 AM-5 PM (9 hours) or 7 AM-7 PM (12 hours).

Add 30-minute ramp periods for sunrise/sunset in 12-hour cycles, or extend to 1.5 hours in 9-hour setups for gradual transitions. Nighttime lunar modes—available in lights like the Kessil AP9X—offer dim viewing without overstimulation, enhancing the reef’s nocturnal allure.

Frequently Asked Questions

How much light should be delivered to corals?

Light needs vary by coral type—soft corals thrive at 100-150 PAR, while SPS like Acropora demand 400-500+. Position corals strategically to match their PAR requirements, ensuring each gets just enough without excess.

How can I determine light acclimation and intensity?

bleaching-coralBleaching coral

Sudden light increases can trigger bleaching, expelling zooxanthellae and risking coral death. Start at the lower end of their PAR range, increasing gradually over 20-30 days to acclimate safely.

What lights for a refugium?

refugiumGrowing Chaeto algae in a refugium

Refugiums prioritize macroalgae growth for nitrate removal. LEDs with red and blue dominance (30-50 PAR) outperform white lights, maximizing Chaeto or Caulerpa proliferation without aesthetic concerns.

Why are reef lights so expensive?

Reef LEDs require high Kelvin ratings, robust PAR output, advanced cooling, and precision lenses—features tailored to coral needs. This complexity, paired with the niche market, drives their cost compared to simpler freshwater lights.

Lucas is the passionate creator behind this website, dedicated to guiding aquarium enthusiasts in nurturing vibrant fish and building thriving tanks. With over 10 years of hands-on fishkeeping experience, Lucas combines practical expertise with a keen eye for the best aquarium equipment to help hobbyists of all levels succeed. Whether you're a beginner or a seasoned aquarist, their goal is to inspire and equip you with the knowledge and tools for a rewarding aquatic journey.

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3 comments

  1. Which of these lights in this article would you reccomend for a 75gallon reef tank?

    Reply

    • Hi Austin, it depends on your choice, just use enough units to ensure enough light, based on your coral types.

      Reply

    • I would recommend 2 of the prime of these lights. But 2 of ghl mitras 7204 or 2 of Radeon xr15 g5 would be even better.

      Reply