Fluval Sea Marine & Reef LED 2.0 Aquarium Light Suitable for saltwater aquariums only Full spectrum marine & reef LED lighting with essential actinic blue spectral wavelengths Promotes and supports strong coral growth and color Balanced combination of multiple LEDs for optimal coral photosynthetic activity, growth & viewing Features 6 unique LEDs, including 400, 420, 440, 460nm LEDs for outstanding blue spectrum coverage