shaywood Posted March 6, 2010 Share Posted March 6, 2010 I currently use a sheet of clear acrylic to cover the openings in the top of my tank. Does this reduce the amount of MH and Actinic light getting to the corals? What is the best material to use? Quote Link to comment Share on other sites More sharing options...
nnewhouse Posted March 6, 2010 Share Posted March 6, 2010 I would use eggcrate or make your own out of bird netting and window screen frames. Acrylic or glass will trap in the heat given off by your lights and block light if its not spotless. Quote Link to comment Share on other sites More sharing options...
acrylics Posted March 6, 2010 Share Posted March 6, 2010 I currently use a sheet of clear acrylic to cover the openings in the top of my tank. Does this reduce the amount of MH and Actinic light getting to the corals? What is the best material to use? IMO it depends on why you have covers in the first place. If you have covers to keep jumpers in, then use egg crate, bird net, or similar. Acrylic is bad choice for such things for several reasons but is still commonly sold with tanks. If you want a full cover like you have, I'd use polycarbonate rather than acrylic - it wont warp out nearly as bad. FWIW, light blockage by acrylic will end up being about 7-8% - mostly from reflection (given clean acrylic) HTH, James Quote Link to comment Share on other sites More sharing options...
shaywood Posted March 7, 2010 Author Share Posted March 7, 2010 Thanks for the reply's. I simply concerned about jumpers, but want the maximum light for the corals. Quote Link to comment Share on other sites More sharing options...
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