Anyone built one or no of one that works better then another? Not sure on the size of the tank i will be using. It is for my new 220 i have a 55 and a 125 but think the 125 and the 220 might be to heavy. I don't no that i would have the room to do both in a 55 i don't want to have to add water every day would like a large sump. I have read alot about the setup of these with no real awnser right now i have a 55 sump for filtering and then it pumps up to the refugium that gravity drains in to the tank so not to grind up copodes and such just added 20 red mangrove trees to it.