I've been fighting "cloudy" water in my aquarium for about a month. It has a slight white color, like "fog" but it never seems to get better or worse.
I started doing about 10-15% water changes daily, that clears it up slightly due to the fresh water, but it goes right back.
I started 25% then 50% water changes, it never goes away. I tried doing nothing and letting it clear on it's own. Nothing. Never got worse, but never got better. I did a near complete clean (~80-90% water change) and dropped the fish back in, a few days later it clouded right back up. All fresh filters, you name it, nothing helps.
I also noticed something odd the last change. There was green algae in the filter motor and brown diatom "algae" in the pipes of the under gravel. I didn't think they couls easily coexist but I guess they can?
Obligatory pics:
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