Surya
Member
I live in the North West and have very soft water (GH 1-2, 1.82 Clarke). I have recently started using pressurised CO2 and have the APF EI starter kit on order, which comes with magnesium sulphate. But I'm wondering if I need to add a source of calcium. My local water report states I have 8.81 mg Ca/l, which means nothing to me.
Any thoughts on whether I should add calcium, and if so, how?
Any thoughts on whether I should add calcium, and if so, how?