07-06-2012, 08:08 AM
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The effects they have aren't as critical in freshwater aquariums so they aren't incuded as often.. but they increase total water volume, which helps keep the water parameters stable, and they make a "refuge" for beneficial plant and algea growth that would be bothered by display fish or unsightly in the display.. they also prevent your display tank water level from changing due to evaporation- any loss in water only shows up in the sump. they are usually added to a sump which just houses a pump, filter media, and also a protein skimmer in saltwater aquariums, although they make HOB or in tank refugiums as well.
Thanks for the suggestion about glass fishguy.. was considering it and i think i might use it now.. where do you get smoked glass? And to take that a little further, what about a mirror? Any downsides besides that cutting a mirror multiple times might be pretty unlucky? Posted via Mobile Device