Yes good advice indeed. A good skimmer will remove lots of DOC's from the water and make keeping the water quality up much easier. Just be careful, there are a lot of skimmers out there but only a few that are really worth the money you spend on them. The Tunzes skimmer is one of two I would suggest, that I have used that are actually worth the money you spend on them. The several others that I have tried have been medocre at best.