hi all. i have a 75 gallon tank with an AC 110 HOF which has been setup for 14 months (and no problems that werent self inflicted and none in last 5 months). i aquired a test kit yesterday and tested for the first time in about 12 months. ph = 7.8, amm. = 0, nitrite = 0, nitrate = 0 (maybe 5...