as an added aside, I would not count on getting all of the kits from one place (i.e. a master test kit) chances are, you will end up using different brands for different tests. Ive been using Aquarium Pharmiceuticals (API) for several years with no complaints. I have also used Sera and Salifert kits. Currently, I use the following:
Ammonia (API)
Nitrite (API)
Nitrate (API)
pH (API)
Calcium (API)
Alkalinity (API)
Phosphates (API)
Iron (Sera)
Magnesium (Salifert) I tried the Sera Mg kit, but was very dissatisfied with the results |