Aquarium: Florescent Bulbs A special 460 nm blend of phosphors that enhance the blue color spectrum in your aquarium. Ideally used in combination with Zoo Med's Ultra Sun(R) Super Daylight for amazing blue color of your fish, corals, and invertebrates. High quality bulbs made in Germany. Available in 18 (15W), 24 (17W), 36 (25W) and 48 (32W).
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