glass over tank when using hood?

[jay dike <jjdike at yahoo_com>]

Is it common practice to keep a glass covering on a tank even when a
hood is used?  It seems worthwhile to keep it in some ways since it
might help prevent CO2 loss and fish los.  However, it seems like
unless it is kept quite clean it could cut down on light intensity.

Also, is there a good estimate of how much intensity is gained by
using a reflector around regular T-12 fluorescents?  What is the
better type - the white metal ones that come with shoplights or
something like the Triton Britelight, which looks like it has a
mirror-like finish?

Thanks.

Jay Dike




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