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Red Sea Reef Spec T5HO Fluorescent Bulb - BlueWhite 15000K

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Most corals are photosynthetic and approximately 85% of the energy required for their growth and coloration is provided through the symbiotic relationship they share with the zooxanthellae algae which live within the coral. In order to facilitate the development of the zooxanthellae, it is essential to provide not only the right intensity of lighting, but to ensure also that the lighting provides the correct color spectrum for corals.

Red Sea’s new T5 Reef Lighting range is the result of extensive testing into the needs of corals within a reef aquarium environment. This high quality German-made lighting is proven to provide the intensity and color spectrum required by even the most demanding coral species, commonly known as Small Polyp Stony Corals (SPS). These corals include such species as Acropora, Montiopora and Seriatopora and have far more exacting requirements for lighting than soft corals.

Using a combination of Red Sea’s T5 fluorescent tubes will not only create a pleasing, natural, visual effect but will also promote growth and fluorescence without encouraging the development of undesired algae.

REEF-SPEC BlueWhite 15000K

  • Length (including pins): 22 1/8"
  • 24 Watts
  • This special color blend (60:40 ratio of 6000K and 22,000K) reproduces the natural lighting conditions of tropical reefs between 1m-20m depth.


Reef Spec Chart

Available REEF-SPEC Colors:
  • Pink: The unique spectrum of the REEF-SPEC Pink enhances the red, pink and purple colors of SPS and LPS corals.
  • Actinic 22000K: This special blue and Actinic spectrum mixture is ideal for maximizing the fluorescent coloration of corals.
  • BlueWhite 15000K: This special color blend (60:40 ratio of 6000K and 22,000K) reproduces the natural lighting conditions of tropical reefs between 1m-20m depth.
Bulb Replacement Guide
Bulb Types Life of Bulb*
Normal Output Fluorescent 6-12 months
Very High Output (VHO) 6-12 months
Power Compact (PC) 9-12 months
T5 High Output (T5HO) 9-18 months
Metal Halide 9-12 months
LED (non-moonlight) ~5 years (50,000 hours)
* Manufacturer Recommendations
All fluorescent bulbs have a 30-day warranty.



Product Manuals & Documentation

Red Sea Reef Spec T5HO Fluorescent Bulb - BlueWhite 15000K

Additional Info 1 available for download in Adobe PDF file format

Manufacturer Info

With a dedicated team of scientists and other professionals, Red Sea is widely recognized as a leading innovator and manufacturer of quality products for aquarium hobbyists. Red Sea constantly strives to provide hobbyists of all levels with highly effective solution-driven products designed to make your fish-keeping experience as enjoyable and successful as possible.

The embodiment of Red Sea’s dedication to providing solutions for today’s reef-keepers is its range of MAX-NANO, MAX-E & MAX-S aquariums- The only choice for true Plug & Play™ coral reef aquariums, now featuring the very latest in LED lighting technology.

For advanced reef-keepers the Red Sea REEFER provides a great platform into which you can add your own selection of hardware. With its ultra-clear glass, ATO built-in, silent flow valve and superb quality of finish the REEFER sets the standard for those wishing to customize. REEFER is also available as a Deluxe version with LED lighting included.

Red Sea’s unique Reef Care Program (RCP) provides a comprehensive, safe and easy to use program for testing and supplementing within reef aquaria, and is perfectly complemented by Red Sea’s Coral Pro & Red Sea Salt’s, which has become the salt of choice for those seeking the very highest quality water quality for their coral reef aquariums. Both salts are made using a unique natural process which delivers unrivalled homogeneity and is perfect for delicate corals. Check your individual bucket of salt’s composition using Red Sea’s innovative new “MyBatch” software.

Whatever your aquatic needs, Red Sea delivers high quality innovative, solution based products.

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