ok. well, the plot thickens...lol.. tested the ammo... 8ppm!!!!!!!! i havent added any more. also- hubby did the water change for me- and he added water to tank 5 min after adding de cholorinator.... and lastly- i originally took the airstone out- after readin through eco23 fishless cycle thing again i realized the airstone was a good thing and had the hubby put it back. however.. he said it looked like white things were floating in the water from the tubing.. liike salt from when it was in before... is that really bad???