mytank
Member
I have an 80 gallon fish only tank and currently have a fluval 404 and a red sea skimmer. The question that I have is that my water is cloudy and I want crystal clear water. Any ideas on how to clear this up, did a 20% water change and still cloudy. What exactly does a sump do and is this needed????? What exactly does a powerhead do, just add air to the tank??? How does a sump work?????? Please explain, thanks.