I have a basic test kit (pH, Nitrite, Nitrate, Ammonia) All those number stay pretty decent. I have a pool test kit that I just noticed today has an Alkalinity test. It says that its results are measured in Calcium Carbonate/parts per million. I dont have any corals yet, just FOWLR (but my new Nova Extreme T5 HO lights came in Saturday!!!) and I'd like to start adding coral. This 'pool' test kit shows Alkalinity at over 1000/ppm of Calcium Carbonate. Can this possibly be right or am I testing apples with an orange sensor? Also pH only about 7.8 this evening, its usually right about 8 to 8.1 Thanks!!!