I have a Red Sea Max650 and have fun it for a few years now. Overall I?m very happy with the tank. Recently I had to break it down for a few months because of a move. As much as I?d love to upgrade to a bigger custom tank it?s not in the budget right now. So I will be setting it back up in the new house. Imo the biggest shortfall of this tank is the sump. Although very well thought out for how Red Sea intended it to be set up for how I use it and all my equipment it?s not ideal. I know there?s a bunch of after market options available. Does anyone have any personal experience with some or any recommendations? I know trigger makes a bunch. Looking to maximize the space so something specifically designed for the rsm650 would be ideal.