Right on.I hear ya. It’s a standard RS sump setup, save for the Reefmat taking up space where the otherwise far-less-useful sock/media cup holders would be AND encroaching 1-2 inches into the fuge space. It’s how Red Sea shows the Reefmat layout for my tank (at least they depict it accurately), but it seems to be necessary only because you really can’t get the Reefmat any closer to the down pipes with the setup/flex hose they provide. I wonder why they didn’t include a different attachment, but maybe a 90 degree would interrupt flow and an elbow bend would be similar to the flex hose anyway.