Rather that start a new topic I thought I could jump in here, I have the same problem, the color is milky white. when you get close you don't notice, but when you look at my other tanks that are clear, then look back it looks very cloudy. I'm running 2 filters ones is meant for a 55g and the other is for a 30g, the tank is a 55g. In the past week I've done 5 30% changes and last week I did a 60% change. It just don't seem to go, now I'm adding some chems, the package is at school, can't remember the name, maybe it is called "clear water" or something like that. I put a ton of charcoal in my filters. It was clear a month ago, then I added my plants, I stirred something from the bottom.
This chemical is like what I add to my pool, makes the suspended particles coagulate so the filter can better grab them but wont that make it easier to get stuck in the fishes gills?