Re: [Killietalk] RO

["Al Anderson" <augustand at sbcglobal_net>]

I am glad to hear someone else prefers rainwater to RO Water. the reason I 
prefer it is my fish seem to like it better.
AAA
----- Original Message ----- 
From: <LeeH920226 at aol_com>
To: <killietalk at aka_org>
Sent: Tuesday, October 10, 2006 9:25 AM
Subject: Re: [Killietalk] RO


>A few details about hot water and RO units are useful to keep in mind. Hot
> water heaters have a sacrificial zinc rod which adds zinc ions to the 
> water.
> These ions can be toxic to fish if excessive. If you use an RO unit, the 
> "RO"
> water will be free of those metal ions, but the waste water will be 
> enriched
> (slightly) with metal ions. Calcium and Magnesium ions are generally good 
> for
> fish, Zinc, Iron, Copper, Manganese are not, at least in significant 
> amounts. So,
> if you utilize the "waste" water for your harder water fish, beware of 
> using
> water from your hot water heater. In my water changing system, I use the
> "waste" water from my RO unit but run it through a carbon filter to remove 
> the
> chlorine/chloramine and through a 50 foot coil of tubing immersed in a 
> heated (in
> the winter) 50 gallon barrel where I store "conditioned" water for manual 
> water
> replacements. That water is heated by a 250 watt Titanium aquarium heater 
> and
> can be dipped or pumped as needed. It is filled manually via a bypass to 
> my
> tank distribution system. When rainfall is adequate, I prefer rain water 
> to RO
> water, for reasons I don't understand, so I cannot explain it.
>
> Lee Harper
> Media PA
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