Hi all,The degree hardness is English or "degree Clark", you can get a conversion <"
page here">, so the given value of 7.14 degrees Clark is ~5.75 dGH/dKH.
1.24 degrees English ("Clark") is equivalent to 1 degree "German", dKH/dGH.You can't directly, but you also have a value for calcium, 30.8 mg/L (30.8 ppm). I won't put all the working down here (they are in <"
How do I work out.....">), but the 31 ppm Ca is equivalent to ~4.3 dKH, so the remaining 1.4 dGH is probably magnesium (Mg). The derivation of degree of hardness is a bit strange, have a look at this thread <"
How to find out....">.Depends on the shrimp, Amano and Cherry shrimps like hard water, Crystal Red shrimps much softer water.
cheers Darrel