# Which aquarium lighting provides the best color spectrum for coral growth? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which aquarium lighting provides the best color spectrum for coral growth?

## Products

### AquaIllumination Hydra 32 HD
```yaml
product: aquaillumination-hydra-32-hd
brand: AquaIllumination
price_gbp: 342.77
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
spectrum: Wider spectrum with dedicated moonlight channel; 7+1 LED channels
waterproof_rating: Water-resistant (not waterproof)
energy_consumption: 90W
```

- **Price:** £342.77 [^1]
- **Summary:** The Hydra 32 HD is a compact, high-output LED reef light with 32 main LEDs plus 4 moonlight LEDs, refined optics for wider spread, app control, and MXM compatibility. It delivers strong PAR for small aquariums, improved water resistance, and multiple mounting options, suited to reef hobbyists seeking a powerful compact fixture.
- **Ideal For:** Ideal for coral growth because it offers a wider multi-channel spectrum (7+1 channels) and 90W power to deliver higher PAR and color tuning for fluorescence and growth.
- **Additional Sources:** [^2], [^1], [^2]

### EcoTech Marine Radion XR15 G6 Pro
```yaml
product: ecotech-marine-radion-xr15-g6-pro
brand: EcoTech Marine
price_gbp: 394.93
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
spectrum: Multiple LEDs including 395nm, 405nm, 415nm, 430nm, Royal Blue, Blue, Cool White, Warm White, Green, Red; HEI2 optic with 126.3 degree spread
energy_consumption: 95W
```

- **Price:** £394.93 [^3]
- **Summary:** The Radion XR15 G6 Pro is a compact, high-performance LED fixture using a redesigned G6 LED cluster and HEI2 optics for wide even spread and enhanced fluorescence. It includes multiple UV and blue diodes plus whites and reds for a tunable full spectrum aimed at reef aquaria and tanks 24-30 in wide.
- **Ideal For:** Ideal for best color spectrum for coral growth because it includes UV diodes (395nm, 405nm, 415nm) and a broad multi-channel LED mix that maximizes fluorescence and photosynthetically useful wavelengths.
- **Additional Sources:** [^4], [^5], [^3], [^4], [^5]

### EcoTech Marine Radion XR30 G6 Pro
```yaml
product: ecotech-marine-radion-xr30-g6-pro
brand: EcoTech Marine
price_gbp: 745.15
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
spectrum: Balanced Pro spectrum with LEDs across 395nm, 405nm, 415nm, 430nm, 460-580nm range plus cool white, warm white, royal blue and blue channels (detailed diode mix listed by manufacturer)
energy_consumption: 215W
```

- **Price:** £745.15 [^6]
- **Summary:** The Radion XR30 G6 Pro is a high-output, programmable LED reef fixture with HEI2 optics, expanded UV (395nm) diodes, and a rebalanced LED mix for wide, even PAR and strong fluorescence. It suits serious reef keepers and aquaculture use, offering Mobius app control, weather/moon simulations, and coverage up to ~48in by 30in.
- **Ideal For:** Ideal for coral growth because it provides a comprehensive Pro spectrum including 395nm UV diodes and a broad 400-580nm band combined with high output (215W) and even PAR distribution.
- **Additional Sources:** [^7], [^8], [^6], [^7], [^8]

### Kessil A360X Tuna Blue
```yaml
product: kessil-a360x-tuna-blue
brand: Kessil
price_gbp: 334.58
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
spectrum: Deep Ocean Blue to Sky Blue + RGB
color_temperature: 10,000 K to Actinic (Tuna Blue range)
energy_consumption: 90 W
```

- **Price:** £334.58 [^9]
- **Summary:** Compact, high-output A360X in the Tuna Blue spectrum with Kessil Dense Matrix LEDs and K-Link/WiFi control options. Offers tunable blue-to-daylight spectrum, strong penetration for small-to-medium reefs, and optional reflectors for increased focus; suited to hobbyists wanting intense single-point LED performance and shimmer.
- **Ideal For:** Ideal for coral growth because it provides a tuned Tuna Blue spectrum (Deep Ocean Blue to Sky Blue + RGB) and 90 W max power for strong PAR and penetration.
- **Additional Sources:** [^10], [^11], [^9], [^10], [^11]

### Red Sea ReefLED G2 115
```yaml
product: red-sea-reefled-g2-115
brand: Red Sea
price_gbp: 342.03
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
spectrum: Enhanced violet and UV with boosted 470nm blue; REEF-SPEC spectrum
light_intensity: PAR at surface: ~500; PAR at 20 in depth: ~150
color_temperature: 10,000K - 23,000K
energy_consumption: 115W
```

- **Price:** £342.03 [^12]
- **Summary:** The ReefLED G2 115 is a reef-focused LED fixture offering adjustable color temperature (10,000K-23,000K), a reef-enhancing spectrum with increased violet/UV and boosted 470nm blue, and strong PAR (~500 at surface, ~150 at 20 in). It features ReefBeat app control and presets for easy programming and coral photography. Suited for hobbyists seeking vibrant coral coloration and programmable control.
- **Ideal For:** Ideal for coral growth because it delivers REEF-SPEC spectrum with enhanced violet/UV and boosted 470nm blue plus ~150 PAR at 20 in depth, supporting photosynthesis and fluorescence.
- **Additional Sources:** [^12]

### ReefBreeders Meridian 63 LED Fixture
```yaml
product: reefbreeders-meridian-63-led-fixture
brand: ReefBreeders
price_gbp: 1453.05
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
spectrum: Extended UV and violet range including 400 nm and 435 nm; indigo/440 nm; mix of UV, violet, royal blue, blue, and white channels
energy_consumption: 375W
```

- **Price:** £1453.05 [^13]
- **Summary:** The Meridian 63 is a full-spectrum reef LED fixture with expanded UV/violet and adjustable optical profiles, app control via Wi‑Fi/Bluetooth, and daisy-chainable power. It's designed for high PAR performance and uniform coverage for tanks up to 72 in by 24 in while remaining energy efficient.
- **Ideal For:** Ideal for coral growth because it provides an extended violet/UV range (400 nm and 435 nm plus 440 nm indigo) and multiple adjustable channels to tune spectrum for fluorescence and tissue growth.
- **Additional Sources:** [^14], [^14], [^13], [^14], [^14]

---
## References & Sources
[^1]: AquaIllumination Store, accessed 2026-06-16. https://shop.aquaillumination.com/products/hydra-32-hd
[^2]: Bulk Reef Supply, accessed 2026-06-16. https://www.bulkreefsupply.com/hydra-32-hd-led-reef-light-black-aqua-illumination.html
[^3]: AquaCave, accessed 2026-06-16. https://aquacave.com/ecotech-radion-xr-15-g6-pro-led-light-fixture.html
[^4]: SaltwaterAquarium, accessed 2026-06-16. https://www.saltwateraquarium.com/radion-xr15-g6-pro-led-light-fixture-ecotech-marine/
[^5]: World Wide Corals, accessed 2026-06-16. https://worldwidecorals.com/products/ecotech-radion-gen6-xr15-pro
[^6]: EcoTech Marine Parts Store, accessed 2026-06-16. https://store2.ecotechmarine.com/products/radion-xr30g6pro
[^7]: Bulk Reef Supply, accessed 2026-06-16. https://www.bulkreefsupply.com/radion-xr30-g6-pro-led-light-fixture-ecotech-marine.html
[^8]: SaltwaterAquarium.com, accessed 2026-06-16. https://www.saltwateraquarium.com/radion-xr30-g6-pro-led-light-fixture-ecotech-marine/
[^9]: AJ's Pets & Things, accessed 2026-06-16. https://www.ajspets.com/product-page/kessil-a360x
[^10]: ASAP Aquarium, accessed 2026-06-16. https://www.asap-aquarium.com/products/kessil-a360x-tuna-blue-saltwater-aquarium-led-light
[^11]: Fish Tanks Direct, accessed 2026-06-16. https://fishtanksdirect.com/kessil-a360x-tuna-blue-w-control-combo/
[^12]: SaltwaterAquarium.com, accessed 2026-06-16. https://www.saltwateraquarium.com/reefled-g2-115-led-light-fixture-red-sea/
[^13]: Bulk Reef Supply, accessed 2026-06-16. https://www.bulkreefsupply.com/meridian-63-led-light-fixture-reefbreeders.html
[^14]: Fish Tanks Direct, accessed 2026-06-16. https://fishtanksdirect.com/reef-breeders-meridian-63/