aclockworkorange;5076376; said:I've noticed tanks with that Tahitian moon sand you're using get it REALLY bad... Could be the sand, as another cause is excess silicates. You can use a product like Seachems Phos-ban to absorb it (goes in your filter) and see how that works.
What are you nitrates and what is your water change schedule?
I noticed some brown dusty looking stuff coming from the sand.. I vac it along with a WC about every week and a half .. I don't keep a scheduled WC day.. I'll check the nitrates here in a bit, I'm watching River Monsters...