Help!! Water Hardness Confusion
So I have started up a new planted tank using RO water, and I know you must add back trace elements/buffers to the water.... but I have no clue what im measuring when it come to water hardness.
Im looking to set the parameters of the tank around: gH 3-5 with kH 2
But the test I have measures the GH in "mg/l CACO3" and KH in mg/l
How do I convert this to get a regular GH or KH reading?
My water is yet far (from the test):
GH - 60 mg/l
KH - 20 mg/l
Can anyone shine light on this chemistry confusion... I just cant seem to comprehend what means what, and I've done my share of reading too....