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RE: automatic water changer

Wayne,  I don't believe that the chlorine would do much, as long as the
water goes in near the surface so that the chlorine has a chance to escape.
My fish seem to be doing fine.

In my setup, I used a "float-valve" from a humidifier, bought at the local
hardware superstore.  Basically, I connected it to the water main, and the
float sits in my 48 gal. tank.  The rate is controlled by the level of the
and that in turn is from evaporation.

Victor Lee
>Date: Thu, 10 Dec 1998 00:59:54 -0500
>From: "wayne jones" <waj at MNSi_Net>
>Subject: Fw: automatic water changer
>Over the last few months I have been using a DIY waterchanger in a 90
>tank. I have it set to add one drop of of water/second. My water is
>chorinated at the level of about 9 ppm and I did not feel this would cause
>any significant harm to the fish.  Unfortunately, for some reason without
>noticing the flow rate has been slowly increasing to a level of about 6 or
>times that rate and as a result the SAEs in my tank have died but the
>have increased pearling.
>My questions are:
>Was the 1 drop/second rate actually harmful to my fish even though I have a
>pair of kribensis that hatched and raised fry in this tank.
>What is the fresh water supplying to my tank that PMDD is not? The only
>significant ions in my tap water are 30 ppm calcium and 9 ppm magnesium.
>Nitrates and phosphates are basically 0 in the tank. Is 30 ppm calcium high
>enough to grow plants as my PMDD does not contain any and I was relying on
>the tap water to provide it?
>Wayne Jones