Tom
Member
How much TPN should one use as a trace alongside EI Macros? I'm currently using 2ml/25l but I'm worried it might not be enough
Tom
Tom
As Clive says it is quite likely that all the dGH in your water is calcium, it is only really the serpentine derived soils in S. Cornwall and the Nottinghamshire/Yorkshire/Durham "Sugar limestones" (Permian dolomites) that contain much magnesium at all in the (relative) S of the UK. If your water comes from a chalk aquifer it will have very low Mg levels.I didn't add any Epsom Salts to my EI mix this time, as my water is very hard anyway.
To reach EI levels in a planted tank with weekly 50% water changes you need to dose 50 ml / 50 l / day.