Hi all. I've been out of the hobby for some time. The last tank I had back in 99 was a 125-gallon mixed reef tank when sumps came out into the market and used siphon overflow boxes. As of April 4th 24, I started cycling the new tank that took me 4 years to build and get that far as I built the stand, sump, facade, and counter lever table off the end of the stand that is my dining room table. I have a 360-gallon island tank viewable from all sides with a center overflow custom-made by acrylic creations. total system volume of 400 gallons after rock displacement.