SnowWhite
Well-Known Member
snowwhite, ask your hydro guy how the water is in your area or have him test a sample of your water for you. it kinda worries me that it is hard to find. I cant imagine you not needing at least a bit, but if your water has a lot of cal/mag already in it, then i dont want to steer you down the wrong path (dont know a thing about uk water).
get a rough idea of how much is already in your water and add until your at 200 ppm.
this is good advise for anyone using canna.
my tap water will be full of calcium I'm sure, and all sorts of other minerals and crap, but I'm collecting rain water and using that, so like RO this is 0 EC or PPM, and has no calcium, so I will need to supplement for sure I would say. I'll just monitor my plants progress closely and see how it all goes.