The ATI 'Blue Plus' T5 tube combines the properties of a blue tube (approximately 460nm) with an actinic tube (approximately 420nm), producing an intense blue light with high PAR numbers and a light spectrum that encourages both bluing and fluorescence in SPS corals.

Also helps balance a washed out yellow hued tank.

Approx 22,000 k

Recommended as a supplement to metal halides or in combination with ATI Aquablue Special, ATI Purple Plus, or other full spectrum T5 tubes.

Can also be used for dawn/dusk applications