Zoomed Coral Sun Actinic T8 Fluorescent Lamp - 15W - 420nm - 18 in.

The Zoo-Med Coral Sun High intensity actinic lamp is ideal for marine aquariums, reef tanks, and African cichlids. High intensity actinic lamp with strong emissions in the short wavelength region of the spectrum, peaking at 420 nm promotes the growth of zooxanthellae algae, essential for the growth and well being of all photosynthetic corals and invertebrates. Output of this lamp closely matches the absorption peak of blue chlorophyll used in photosynthesis. Long lasting: Effective for up to 10,000 hours.

For more information, please read our article on Fluorescent Aquarium Lighting Basics.