hey guys, finally decided to get back into the game with a 180, it's been a while since I had a tank and all my old tanks always came with built in overflows, this time however I jumped the gun and picked up a tank without overflows. I want to try and do the overflows myself and have a design in mind but I just needed some expert confirmation to see if it'll work or if it's a disaster waiting to happen. it's a 180 gallon glass tank, I have made sure the panels I am planning on drilling is not tempered but I'm still a little iffy about overflow design. I plan on doing an internal wier roughly 8"×5"×22" and am trying to set up either a bean animal style overflow or a herbie overflow. The pipe diameter I'm eyeballing right now are 1.5s for the drains and 1.25 for the returns, and it will all dump into a 40 gallon breeder which has will probably be running with a 1900 gallon pump. Am I headed in the right direction? or should I scrap the idea lol I've been trying to research it to the best of my abilities but would still prefer some experienced advise, thanks in advance