Test kit merk sali**rt drpd merk s**a.
Ane juga blm ada test kit, minimal kh, ca, mg.
Copas dikit hasil googling :
Alkalinity, often referred to as "carbonate hardness," or German carbonate hardness, is the measure of carbonate and bicarbonate concentrations in your aquarium water.
Alkalinity is a measure of the ability of a solution to neutralize acid without changing the pH. It both controls and maintains water pH. Carbonate hardness is measured in degrees (dKH), parts per million of calcium carbonate (ppm CaCo3), or milliequivalents per liter (meq/L).
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There are a number of parameters you need to monitor to maintain a healthy and successful reef tank. Among the most critical are Alkalinity and pH, Salinity, Temperature, Calcium, Magnesium, Phosphate, and Ammonia. There is a second tier of parameters less critical but still important to know about and may require monitoring depending on your specific tank type. This discussion covers Salinity.
Salinity - is the measure of the concentration of dissolved salts (ions) in water. Normal seawater is about 3.5% salt and 96.5% water by weight. Salinity is often given in ppt – parts per thousand. A salinity of 35ppt is just another way to say 3.5% salt. (35 ÷ 1000 = .035 then multiply by 100 to convert to percent = 3.5%)
Seawater is composed of many different ions (salts) in different concentrations but the sum of them all adds up to 3.5%. (For a detailed breakdown see
seawaterchemistry.com) The main ions in seawater are sodium (Na), chloride (Cl), magnesium (Mg), and sulfate (S04), forming the salts (NaCl and MgS04). It is these that determine the salinity by how much is present. And even thought there are many other ions in seawater, changes in their concentrations have little impact on salinity, but they may be important in other ways.
