You don’t lose the illumination at the bottom of the deeper tanks. A popular choice of tube to use in combination with the iQuatics Blue Plus and the Aquablue 50:50 fluorescents. The iQuatics Purple contains a higher concentration between 400-500nm (Blue Plus) peaking at 420nm (Actinic fluorescence) and 600-650, peaking at 620nm (red) thus enhancing the colouration of your corals.
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