To help kill harmful bacteria and other pathogens, add an aquarium ozonizer to your equipment.
Things to Consider:
Clear water -- An ozonizer will change your yellowish-brown water to a nice clean and clear color.
A little at a time - Aquarium Ozonizers should not be used too much at first, but rather a little at a time, to prevent killing off all the bacteria in your filter, some which may be good.
Protein skimmer -- The Aquarium Ozonizer is a great addition to your existing protein skimmer.