Its around 8. The tank was fine, fish were healthy untill I took a two day vacation just to come back to see a cloudy tank with super high Ammonia levels and the PH dropped to 6 from 7. I did a few water changes the past few days . But no luck, I tested the water that was to be put in, not a sign of ammonia. Once I put it into the tank, boom back to 8. It seems as if the water changes are not doing anything.