How CTT ReefGlow and Coral Reef Aquarium Lights Support Vibrant Coral Growth
- Gabriel Anderson
- May 8
- 3 min read
Successful reef aquariums depend on precise lighting to sustain healthy coral growth and brilliant coloration. Whether you’re nurturing soft, LPS, or SPS corals, the light spectrum, intensity, and PAR distribution all play critical roles.
CTT’s ReefGlow and Coral Reef LED lighting systems are engineered to meet the exact demands of reef-keeping enthusiasts. These advanced fixtures deliver powerful, targeted light with minimal heat—ensuring coral vitality, vibrant pigmentation, and stable tank performance.
Table of Contents
Why Lighting Matters in Coral Reefs
Understanding PAR and Spectrum for Coral Health
CTT LED ReefGlow: Specifications & Use
CTT LED Coral Reef Light: Features & Applications
Comparing ReefGlow vs. Coral Reef Models
Installation Tips for Reef Systems
Final Thoughts
Corals rely on their symbiotic algae (zooxanthellae) to perform photosynthesis. This process provides the majority of their energy and enables growth, polyp extension, and vibrant coloration. Proper lighting:
Supplies optimal PAR (Photosynthetically Active Radiation)
Mimics reef sunlight with full-spectrum output
Stimulates fluorescence for visual brilliance
Avoids overheating sensitive tank environments
Without consistent, high-quality lighting, coral health quickly declines.
PAR (Photosynthetically Active Radiation) measures usable light for photosynthesis (400–700 nm range). Different corals require different PAR:
Soft corals: 50–150 µmol/m²/s
LPS (Large Polyp Stony): 100–200 µmol/m²/s
SPS (Small Polyp Stony): 200–400+ µmol/m²/s
Spectrum tuning is just as vital:
Blue light (420–470 nm): Maximizes coral fluorescence and photosynthesis
White light (10,000–20,000K): Mimics midday reef lighting
Actinic peaks: Support zooxanthellae and deepen coloration
CTT lights are precisely tuned to meet these needs.
Designed for advanced SPS and LPS reef keepers, the ReefGlow LED light delivers high-intensity output with full-spectrum performance. Ideal for deep tanks and demanding coral species.
Specifications:
Wattage: 90W (high output)
Color Temperature: ~23,000K
Spectral Range: Strong actinic blue, royal blue, cool white
Fixture Length: ~44 cm
Tank Fit: ~60–90 cm tanks or mounted for deeper penetration
Certifications: CE, RoHS
Key Benefits:
Penetrates deeper reef tanks with strong PAR
Brings out fluorescence in SPS like Acropora and Montipora
Provides consistent lighting for high-light-demand corals
This model offers a more balanced lighting solution ideal for mixed reefs with soft, LPS, and moderate SPS corals.
Specifications:
Wattage Options: 45W or 72W
Color Temperature: 15,000–20,000K
Design: Compact light bar with multi-channel LEDs
Mount Type: Bracket or canopy-ready
Certifications: CE, RoHS
Best For:
Tanks 30–90 cm wide
Beginner to intermediate reefers
Soft coral gardens or LPS-focused tanks
Key Features:
Balanced white/blue spectrum
Great fluorescence for zoas, mushrooms, euphyllia
Easy to mount, plug-and-play setup
Comparing ReefGlow vs. Coral Reef Lights
Installation Tips for Reef Systems
Mounting Height: Place 15–30 cm above water surface
Coverage: Ensure full light spread to prevent shadowing
Cycle Duration: 8–12 hours of light with ramping if using a controller
Pairing: Use with a reef timer/controller for sunrise/sunset simulation
Final Thoughts
Whether you’re running a coral-packed nano tank or a full-blown SPS reef, lighting is the heartbeat of your system. CTT’s ReefGlow and Coral Reef LED lights deliver both the intensity and spectrum needed to support coral growth, coloration, and long-term vitality.
For reef aquarists who want dependable, energy-efficient lighting that brings out the best in their underwater ecosystem, CTT LED technology is the smart, reef-safe choice.
