The test kits are used. See below for estimates of use.
Salifert
Ammonia (50 tests) - Less than 15 used
Nitrite (60 tests) - Less than 20 used
Nitrate (60 tests) - 30-40 used
Phosphate (60 tests) - Less than 10 used
KH/Alk (100-200 tests) Less than 10 used
Calcium (50 - 100 6ests) - Less than 10 used