sump design

[schroeder]

Originally Posted by Fishward

personally, i would reduce the area you have set aside for rock and increase your return area. unless you have an ATO, you'll want that area to be as big as possible to reduce the frequency you'll have to top up fresh water. that is the area you'll notice all your evap.

Conversely, if you DO have an ATO, a smaller return area will mean shorter and more frequent top up cycles which will result in more consistent salinity (ie. lower fluctuation). That and a smaller return area leaves more room for live rock