DIY LED Light Questions

[Beanz]

ok thatnks cal, i am gonna do a water test today and c if the pH is changing as a result of the sheets. if there is i might get some screen but the acrylic is doing a dandy job of keeping the zebra in the tank. I am going out today to get the materials for the fixture so i will start posting pics today maybe, i might get a shot of the zebra too if i can get a good shot