There are a number of measurements that can be made for the aquarium water. The list below covers almost every test available to the aquarium hobbyist:
1. Ph
2. Ammonia
3. Nitrate
4. Nitrite
5. Kh
6. Gh
7. Iron
8. Ammonium
When you maintain a planted aquarium the most important are Ph and Kh since with these two tests CO2 levels can be calculated. The rest are not essential to a [...]