75g with 60lbs dry and 15lbs live rock. Used fritz and 2 clowns. Using the master test. Starting the cycle only 9 days ago. So the problem is that ofcourse my ammonia came up fast and furious and seems to be holding at at .50. All good right. Well I never seen any nitrites then today all of a sudden my nitrates are at 20ppm. So is this normal with fritz? I have never used it before.