Algae Posted April 29, 2009 Share Posted April 29, 2009 I am going to be building two canopies for seperate tanks and want to t5 light them. I am talking about 12-16 pairs of endcaps. I have all my ballasts (cheaper by the dozen). The math gets up there pretty quick at $9 a pair for endcaps and $5 for standoffs. I want to have the bulbs about 6 inches above the surface of the water (shallow tanks). The question is: Do I need waterproof or water resistant end caps,? I do not want to use glass under the fixture. This will expose the reflectors and to a lesser extent, the endcaps. Maybe I should go with glass and use less expensive endcaps? Quote Link to comment Share on other sites More sharing options...
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