AquaIllumination AI Prime 16HD Reef Aquarium LED, Black - AquaIllumination $249.99 The New AI Prime 16HD shares the same cluster as the Hydra 32HD and Hydra 64HD. The Prime 16HD incorporates 16 LEDs (+1 Moonlight) and an all new TIR optic. What's New: • More LEDs• More PAR• More Spread• Improved Optic... Add to Cart