Margolis wrote:
I don't know anybody that uses pure ro/di water. That would almost be
suicide. Most add some baking soda and other minerals to restore the proper
balance. The fish and plants need the electrolytes and minerals in the
water to survive. And with 0kh, your ph would have a tendency to crash to
fatal levels for most fish.

Just my 2¢

Agreed. I buy the 25 cent/gallon RO water and mix it 50/50 with my
liquid rock tapwater. That brings the pH down from 7.8 to a more
reasonable 7.4.

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__ Elaine T __
__' http://eethomp.com/fish.html '__