The landscape of a reef aquarium is not merely one to engage the senses, although aesthetic function is certainly important to the tank keeper. Aquascaping in reef aquaria is primarily based around the structure of live rock and often sand substrate. In the past, it was suggested that up to 2 pounds of live rock per gallon of tank water capacity be used to provide adequate filtration. Over the years, however, and depending on the weight and shape of live rock, it has become apparent that the earlier estimate was exaggerated. Not only are lesser amounts of live rock capable of managing biological and mechanical filtration of substantial bioloads, but, in this case, less is actually more.
Reef aquaria in the past, as well as many
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