That is a great write up of your build. I had a question about your fluidized bed filter. How is it working out for you? I have always wanted to build one of these because of their efficiency and the space saving (instead of a huge sump) and just wanted your opinion. Thanks!
It seems to work really well. It's my mechanical filter that I'm not very happy with. As I wrote about, I cheaped out on the pumps at first and paid the price in having to replace them, but overall it's worked well. I'll probably do fluidized bed filters on future large aquariums. I've never done a sump, partly because they're not good for CO2.