Overview
ATI Blue Plus is one of the most popular reef T5 bulbs available, combining blue light near 460nm with an actinic component near 420nm. This blend produces intense blue light with high PAR and a spectrum that drives both coloration in SPS corals and fluorescence in capable corals. It also helps balance tanks that look washed out or yellow.
Key Features
- Blends blue (~460nm) and actinic (~420nm) output in one bulb
- Delivers intense blue light with high PAR
- Encourages SPS coloration and coral fluorescence
- Balances washed-out or yellow-toned tanks
- Great as a supplement to LEDs and metal halides, plus sunrise and sunset use
Specifications
| Weight | 1 lbs |
|---|---|
| Brand | ATI |
| UPC | 4260216210068 |
Frequently Asked Questions
What spectrum does this bulb produce?
It combines blue light near 460nm with actinic light near 420nm.
Can it be used with LEDs or metal halides?
Yes, it is commonly used as a supplement and for sunrise and sunset effects.


























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