I keep neos (RCS, Taiwan Painted Fire reds, Fire reds, Rilis red and blue and wilds) and caridinas (CRS, CBS, PRL, Golden/snowwhite) using NYC tap. No need for R/o unless your water tests incredibly poluted. my tap reads 30 tds, 0kh/1gh/6.8ph
For Neos, use baking soda (sodium bicarbonate) to raise gh/kh or use equilibrium.
For Caridinas, raise GH with Mosura mineral plus, shirakura CA+ or Fluval Shrimp mineral supplement. They do better with a low KH.
BTW, Equilibirum was selling for $4 a bottle at the last meet in Brooklyn.
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