In a message dated 11/13/00 1:03:52 AM Mountain Standard Time, festae00@yahoo.com writes: > At that point, it's a simple matter of playing around with different > ratios of tap to ro till the right balance is achieved. By balance, I mean > pH > and hardness. Hopefully i'm somewhat right :) Not necessarily. If you mix pure water with tap water, you will end up with a pH somewhere between 6.6(the "theoretical" pH of pure water that has dissolved the amount of CO2 proportionate to atmospheric concentration) and the pH of your tap water. If you have base water(above pH 7.0, you will not automatiucally get acid water by mixing DI water and tap water. Bob Dixon ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!