"DeeOooGee" wrote in message
news:mEVNd.54738$EG1.15833@attbi_s53...

"John Rogers" wrote in message
...
I have had a problem recently during water changes. I have kept a 55
Gal freshwater tank with silver dollars and angels. Water changes are
made with a python gravel cleaner, and I refill right from the tap, then
add chlorine neutralizer and some freshwater aquarium salt. For years I
have had no problem, but the last few changes have resulted in the
aquarium clouding up within several hours of the change. The fish are
also distressed and stay at the surface with rapid gill movement. The
next day the matter is corrected, fish back to normal, and the white
substance that had clouded the water is now a white residue that settles
snip

one solution would be to go to your local water store (even grocery store)
and buy RO water. I get mine for 25 cents a gallon! Your fish will love
you for it.

Depends on the fish. Most need more electrolites/minerals than pure R/O
water would have.

Bob