After decades of aquariums, first freshwater then marine, and after a dozen years without a tank I finally got back in with a reef tank in January . I have a 55 with a 29 sump and love it. Learning (or trying to) every day. One thing I've learned is I'm spending every day also. Just starting to frag the easy ones (Xenia, Rasta, Zoas, GSP) and one piece of Moniporia.