The GloFish Blue LED Aquarium Light is designed to convert existing aquariums to an eye-catching GloFish environment. These lights feature blue LEDs that highlight the fluorescent colors of the fish. Use one for a 5-10 gallon aquarium or two for a 20-55 gallon aquarium. Link multiple strips together for ultimate lighting. Hardware and mounting kit included. GloFish Blue LED Aquarium Light, 8″ Length.