Originally Posted by Keith A.
I'm not sure if that is true or not. I haven't heard of that if it is. I've had a glass top on my tank since day one and the corals (some of which require pretty intense light) seem to do just fine with the light still getting through, even with just the PC
lights. I would be sure that you clean off the salt spots on the glass every so often if it is true though. The only thing I would question is if it would increase the temp of the water or not. But it would keep the eel in the tank.
regardless of whether it blocks light or not, it is a proven fact (ask me, been there done that) that poor oxygen exchange at the top of the tank will lower ph. If the co2
cant be degassed at the top of the tank because of a glass lid almost sealing it in, the ph will drop. Ive experienced this myself and im sure alot of other people have as well. Im sure in Melosu's 11+ years of experience, he has as well. It has absoultely nothing to do with salt creep inhibiting the light from passing through, its about the all important oxygen exchange that is required on any aquarium, whether freshwater or saltwater
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