Like @PrimeTimeReef said, removing the baffle was the hardest part but even that wasn't bad. I used https://www.bulkreefsupply.com/reefmat-sump-modification-kit-red-sea.html which made it supper easy. You also don't have to hard plumb it and can use the flex the Reefmat comes with if that's easier for you.How easy/hard was it to replace the filter sock with the ReefMat? I’m not very DIY so trying to gauge if I can do this myself. Thanks.