coandcarule;4637351; said:http://www.pentairpool.com/pool-own...stems-sand-sand-dollar-filter-systems-148.htm would any of those be big enough
That is closer to what you'll want for mechanical filtration on your set up.
Pool filters do very well on marine tanks. In fact, I'd say 99% of my big pool life support systems include a sandfilter (or sandfilters) like that. They are very good at getting junk out of the water column.