Tetra Test O2 Measures the oxygen value reliably and precisely for all freshwater and marine aquarium (about 25 times)
Salifert Copper (Cu) Test Kit - Premium liquid test kit for precise Copper (Cu) measurement in aquariums (50 Tests)
WarmTone Salinity hydrometer WT-11
Tetra Test NO2 Measures the nitrite value reliably and precisely
Tetra Test NH3/NH4+ Measures the total ammonia value reliably and precisely
Salifert Nitrite (No2) Test Kit - Premium liquid test kit for precise nitrite measurement in aquariums (60 Tests)
Salifert Carbonate Hardness (Kh/Alk) Test Kit - Premium liquid test kit for precise nitrate measurement in aquariums (60 Tests)
Salifert Magnesium (Mg) Test Kit - Premium liquid test kit for precise Magnesium (Mg) measurement in aquariums (50 Tests)
Deep Six Hydrometer
Salifert Wateranalysis Calcium (Ca)
Tetra Test pH Measures the pH value reliably and precisely
Salifert pH Test Kit - Premium liquid test kit for precise pH measurement in aquariums (50 Tests)