Use of This Lighting to Condition the Aquarium BeFore and After the Day-Light Cycle Will Reduce Animal Stress. The Coralife Actinic 03 Blue Lamp Is A 100%Blue Actinic 03 Phospor That Peaks At 420 Nanometers. Dimensions: 18.75in X 1in X 1in. Additionally Many Marine Invertebrates Have Evolved to Depend On Blue Light, the Wavelength Which Most Readily Penetrates the Water.
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