02-06-2007, 12:12 PM
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Originally Posted by caferacermike
Jones in a 90g tank I'd be pressing for about 3,000-3,500GPH or more for flow. Flow is very important in saltie tanks. A wet/dry for a 90g tank would not work if hooked up to a pump that could push 5,000GPH (giving extra for head losses). Also wet/dry filters can become a source of bane for saltie keepers if it is not regularly maintained. that's why you'll here more and more keepers referring to a sump (a place to add a skimmer out of sight) and a refugium (a place to grow unwanted algaes and such so as to use upt the nutrients). A sump or wet/dry is normally recommended to have a flow between 5-10 times the water volume whereas the tank should have 30-40 times turnover rate.
I believe that I understand.
In the "saltwater world" the flow required in the tank is so great that if the flow were returned through the sump the filtration would not be effective.