hope you don't mind but I edited your post so your image would show.
I'm of the mind set that both BioBalls and the Filter pad are not necessary. But other than that it looks good. the baffles are playing another role in this sump and they are forcing all the evaporation to the section with the return pumps this is a good idea as you want to maintain a consistant level in the skimmer section. also a auto top off system can be used to ensure the water level never falls
J |