i think i am going to change my sump setup .... i will have the overflows draining into the skimmer chamber first...then on to the refugium, then to the return..... when i first set it up, i will not have the refugium, but i am going to install the baffles for it... i will try to find a pic or draw it....which ones of the baffles have to have teeth on them, or is it personal preference?????also, should the end of the sump w/ the return ,have the three baffles????