I'm sure you could find a nice Space Saver skimmer such as a Super Reef Octopus which come external or internal space savers also BubbleKing Mini's would be a great space saver just a bit more money than a SRO both great skimmer's and as for me I would go with SRO unless I had the xtra cash to spend than id go with a bk mini ither 180 or 200 imo gl