hi all i was looking for some advice on my diy sump and skimmer so i have researched it alot and i have a 150 gal tank im setting up i made a countercurrent air driven skimmer 5' high out of 6" pvc i have a 140 gph sump pump my plan was to have an overflow box on my main tank into the first chamber of my sump in that first chamber i will have the sump pump pump water into my skimmer and outlet of skimmer goes back to the same chamber then i want chamber 2 to be a refugium followd by a bubble trap consisting of 3 baffles then chamber 3 will be another sump pump as my return question1 = how high should i keep my skimmer filled?question2=how do i determine my baffle height the sump its a 30 gal tank?question3=will the way i pipped the skimmer work?