I have been messing with my water parameters and came up with a couple of questions that I could not answear..I tried to maintain a gh of 4-5 and a kh of 4 but mixing tap water with RO water is not possible since the gh is 9 and kh is 4 so the gh would raise up too much..I thought to use pure RO and use regular aquarium hardening salts but I was a bit sceptical.Do these salts provide trace elements as well?I have been reading the percentage of ions on the label of the product and none of the ions could be said to be a trace elements...please help me out here..
ALSO..
GH is supposed to be a measurement of calcium and magnesium cations.Why these 2 ions are measured as the total hardness?What is actually the importance of knowing the concentration of these 2 ions?Until now I thought that hardness of water was important to match the osmotic rate of a specific fish but if this was right then all ions would contribute to this and not 2 of them only,so whats the deal with with this parameter?
ALSO..
GH is supposed to be a measurement of calcium and magnesium cations.Why these 2 ions are measured as the total hardness?What is actually the importance of knowing the concentration of these 2 ions?Until now I thought that hardness of water was important to match the osmotic rate of a specific fish but if this was right then all ions would contribute to this and not 2 of them only,so whats the deal with with this parameter?
