The EcoTech Radion G6 is one of the most powerful and customizable LED reef lights on the market. But with great power comes great complexity—especially when it comes to tuning the perfect spectrum for coral health and colouration.
Whether you’re growing high-end SPS colonies or vibrant soft corals, this guide breaks down the best Radion G6 light settings to promote coral growth, maximize fluorescence, and create a visually stunning reef tank.
Understanding G6 Models and Spectrum Output
EcoTech offers two G6 models: Radion G6 Pro and Radion G6 Blue.
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G6 Pro: Full-spectrum with white, red, green, and deep blue channels – ideal for a natural look with strong PAR output.
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G6 Blue: Optimized for coral fluorescence with enhanced violet/UV spectrum – perfect for colour pop and SPS displays.
Tip: Both models are fully controllable via the Mobius app and offer identical structural builds and light spread via the HEI2 lens.
Using the Mobius App: Setup Basics
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Download and Pair your G6 Radion with the Mobius app.
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Navigate to Lighting > Schedule.
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Choose from built-in templates or create a custom lighting profile.
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Adjust spectrum, intensity, photoperiod, and ramp times.
Recommended Light Settings by Coral Type
SPS-Dominant Reef Tanks (Acropora, Montipora)
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Spectrum: Heavy blue spectrum, low white
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Suggested Template: Coral AB+ or LPS/SPS Blend
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Intensity: 75–100% (adjust based on PAR)
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Photoperiod: 10 hours total, with gradual ramping
Pro Tip: Place high-light corals directly under the center of the Radion for best PAR saturation (350–450 µmol/m²/s).
LPS Corals (Torch, Hammer, Acan, Frogspawn)
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Spectrum: Blue with a hint of warm white
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Suggested Template: Radiant Color or modified AB+
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Intensity: 50–75%
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Photoperiod: 8–10 hours with longer ramp up/down
Pro Tip: Most LPS prefer PAR between 100–200. Use lower zones and shadowed corners to your advantage.
Soft Corals and Mixed Reefs (Zoanthids, Mushrooms, Leathers)
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Spectrum: Moderate blue and violet, lower intensity
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Suggested Template: LPS Softie Blend
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Intensity: 30–60%
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Photoperiod: 8–9 hours
Pro Tip: Softies do best with gentle flow and diffuse light—ideal for tank edges and lower zones.
Acclimation Mode: A Must for New Setups
EcoTech’s Acclimation Mode lets you ease corals into new lighting conditions over several days or weeks.
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Start at 30–50% intensity
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Set a 14-day ramp-up period
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Gradually increase to target output
This helps prevent coral bleaching, polyp retraction, and stress responses.
Sample Daily Lighting Schedule (AB+ Template)
|
Time |
Intensity |
Spectrum Notes |
|---|---|---|
|
08:00–10:00 |
0–25% |
Sunrise ramp, blue-heavy |
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10:00–18:00 |
75–100% |
Full spectrum peak |
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18:00–20:00 |
100–0% |
Sunset ramp down |
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20:00–22:00 |
5–10% |
Moonlight, low blue |
Tips for Fine-Tuning
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Use a PAR meter to measure actual light intensity in your tank.
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Watch coral response for 2–4 weeks after changes.
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Maintain fan and vent cleanliness for optimal performance.
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Save your settings in Mobius for backup and experimentation.
Final Thoughts: Light as a Living Tool
The EcoTech Radion G6 isn’t just a light—it’s a precision instrument for coral care. With the right settings, it can simulate natural reef conditions, encourage strong skeletal growth, and unlock stunning fluorescence.
Whether you’re chasing growth, colour, or both—understanding your corals’ needs and tailoring your spectrum accordingly will make all the difference.
