Water Test,

Ph 7
ammonia 8 ppm maxed my scale out
Nitrite close to approaching .25 ppm but not quite 0
Nitrate 80 ppm

Water Temp 75 F

Installed two 6" air stones. Without buying an RO system what would be a good filtration for this crappy municipal water? Are those Ceramic stones any good, it looks like I could buy just the stones for pretty cheap. (http://www.amazon.com/Rio-2000-Replacem ... B001YG9GBS)