280 ppm tap water

Hard micro is "Used in place of FloraMicro when your starting water contains over 200 ppm or Calcium above 70ppm."

So yes, you should use the hard water version. Besides that yours is over the 200ppm, good chance 70 or more of that 280 is Ca.
 
thanks sativied...thats what i'll get...did you ever answer my question about the sugar punch?....aint had time to look....well,i went and looked but cant find that thread of yers..
 
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