Product Highlights: ATI T5 Bulbs

Our T5 bulbs were first introduced to the market in 2000, so they have a long track record of success. T5 bulbs combine the latest advances in both phosphor and manufacturing techniques to produce bulbs that are stable and with better coloration and higher output.

These bulbs are trusted and used within every level of the aquarium industry, from home hobbyists to shop owners, coral farmers, and scientists. The reason these bulbs are so popular is because they are energy efficient—using about the same power consumption as LED fixtures—yet they are affordable. Whereas most of our competitors offer Chinese manufactured bulbs, ATI’s T5 bulbs are made in Germany which provide a higher level of quality.

We have a great selection of bulb options that will suit all your saltwater livestock needs and will make your fluorescent livestock shine. It’s up to you to select the bulbs that best suit your particular tastes.

In order to do that, it’s recommended that you purchase a few extra bulbs so you can mix and match them until you have a color that is pleasing to your eye. Because you have a wide variety of color options in a T5 fixture.

Here are the bulbs…

Aquablue Special bulb chart
Aquablue Special: an elevated blue color peak in an otherwise full-spectrum bulb. Approximate color temperature is 15,000K.
Blue Plus bulb chart
Blue Plus: the most popular reef aquarium T5 bulb combining the properties of a blue bulb (about 460nm) with an actinic bulb (about 420nm). Commonly used in sunrise and sunset applications. The bulb produces an intense blue with high PAR, and is excellent for coloration in SPS coral and fluorescence in those that fluoresce.
Coral Plus bulb chart
Coral Plus: a bulb that is great for color rendition. It combines properties of the Blue Plus, the Aquablue Special, and the Purple Plus. It has a cool, white color with a bit of red and blue. Color temperature is about 150,000K+.
Purple Plus bulb chart
Purple Plus: An excellent color rendition choice that works well for the pinks, purples, and reds in an aquarium. It’s a combination full-spectrum bulb with strong reds and blues. It is recommended to be combined with at least 2 other T5 bulbs.
True Actinic bulb chart
True Actinic: A bulb that will maximize the fluorescent possibilities in your livestock with its violet-blue light. Its color spectrum peaks at 421nm. Usually just one of these is used in a combination of bulbs. Also commonly used for sunrise and sunset applications.

ATI North America has several great lighting fixture options for saltwater aquariums. Our models include fixtures such as controllable lighting through WIFI as well as dimmable options. For more information, about our different fixture models, please click here. We also provide a convenient store locator on our website to help you find a location near you.

ATI North America is a leader in equipment for the saltwater aquarium. If you have any questions about this article or any of our products, ATI North America can be reached at (303) 459-2119 or you can email us at

If you are interested in becoming a dealer in our equipment, please contact us here.

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