phospho ban is a good product. It helps alot. But like mentioned before in new tanks, it is very common. It doesnt look nice I know but it will go away. If using tap water, like mentioned before it will stay around, One thing you could do to get ro water is go to Walmart and they have the water purifier ther and you can buy ro water for like 33 cents a gallon, so thats a thought if your tank isnt all that big