Group:
Has anyone found the results of studies on the effects of glass covers on
the lighting intensity levels (amount of loss) and which particular wave
lengths are most affected?

I'm using 1/4" plate on my 120 to retard evaporation and also to keep the
discus from wetting down the floor at feeding time. I could live with the
water additions and wiping if my light quality/quantity is being
significantly affected. The CF's have their own shielding so they'd remain
protected from the moisture. Any factual information out there on this?
Are there differences in types and/or thicknesses of glass?

Thanks,

Robert




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