In article ,
Koi-Lo wrote:

"Flash Wilson" wrote in message
. ..
I am constantly impressed by the resilience of fish.
I could only keep half of their pH 6 or below water, and had to
top it up with pH 8 from the tap. So much for all this "only
change 0.1pH at a time"...
============
I think NetMax (correct me if I'm wrong) said it's the other dissolved
things in the water and not the PH itself that kills them if there's a
difference. I know if I don't acclimate fish from certain stores where the
PH is low and the water is soft to my water with a high PH and high
alkalinity, they will often die. They gasp at the surface before dying.
Sometimes it takes a few days for them to die. Whether it's the PH
difference or other things in the water I have no idea......

Holy **** wher do I begin to unravel these distorted half truths
and heresay?

1) It was Me, not Max, referrng to JJ. Scheels documentation
on this subject in "Rivulins of the Old World".

2) He asserted pH doesn't matter. Going from soft to hard water
doesn't matter.

3) Going from hard to soft water matters. Fish cannot endure a chnage
of more than 50% differnce when going from water than is "softer";
that is, less dissolved solids.

4) Gasping at the surface is a sign of ammonia poisoning through
"old tank syndrome". Ammonia is very very toxic in neutral or
alkaline water, but harmless in acid water. Old tanks, over time
become acidic; when fresh water is added the pH goes up and
all that ammonia becomes very toxic very quickly. Fish
excrete ammonia through their gills and when they can not
because theres too much ammonia in the water, they gasp at
the surface and often die.

Please stop guessing.

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