Your water is a little hard and pretty alkaline. Your paphs and
phrags probably enjoy it.

Stuff with smaller, finer roots won't take to it well, based on
the hardness. A lot of it depends upon what you're trying to grow.

Your best bet would be to batch prepare your water; add your
fertilizer, re-check your pH, and maybe throw in some Epsom salts
(magnesium sulfate) to help wash out some of the calcium carbonate buildup
now and again with a little ol' cation exchange. Do you see any root tip
burn as it is?

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-AJHicks
Chandler, AZ