Discus fish comes from soft acidic waters of the amazon river basin. As with many other south American Cichlids, discus…
KH or Carbonate Hardness, also known as buffering capacity or temporary hardness, is a measure of carbonates and bicarbonates ions…
GH, also know as General Hardness, is the measure of (mainly) magnesium and calcium ions in the tank water. Water…
Total Dissolved Solids, also known as TDS, is the combination of inorganic compounds that are found in water including all…