by the way, I hope you aren't drinking the RO water yourself, it's okay, but
it has nothing in it, you will get cavaties drinking it. It is missing
nutrients and minerals that tap water has, even well water. Just talking
from experience.



"Geezer From The Freezer" wrote in message
...
If you're local dealer suggested changing 10% every 5-6 weeks, I suggest
finding
another local dealer other than that one!!
10% every 5-6 weeks is almost certain to kill your fish prematurely.