<a href=showthread.php?s=&postid=6969300#post6969300 target=_blank>Originally posted</a> by Agu
There is no filtration on the tank. There is room for a bag of carbon in the overflow.
Based on this article,Water Changes in Reef Aquaria I'm doing daily waterchanges of 16 oz. That's about 2.5% of actual water in the tank and only takes a couple of minutes/day.