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Old 01-02-2009, 01:52 PM   #1
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Glass Top for 75 gal tank?

Hello,

I have a mature 75 gal reef tank with metal halide lighting. I have been keeping the glass top on my tank for years. The other day I started thinking that may not be the right approach.

Should I keep or remove the glass top?

Thanks!
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Old 01-02-2009, 02:12 PM   #2
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IMO you should remove it. For 2 reasons I might suggest. 1) It promotes poor gas exchange at the surface lowering your PH. No top and good surface aggitation will cause your PH to be at a heathy reading. 2) They trap heat from your lighting causing high temps. Esp. with that MH lighing. My opinion is to ditch the cover.
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Old 01-02-2009, 02:51 PM   #3
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If you're worried about jumpers, try using some egg crate in place of the glass tops.
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