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Re: [APD] neglected tank
<pH is also important. Each species varies on its tolerate on pH changes
<ramatical alter the pH in a few moments.
<So river species have a higher toleration to rapid pH changes.
I would think the variances in Gh and Kh would be more harmful. Usually
my tanks are pretty much neutral Ph. This is mostly due to the old lead
plumbing in some of the really old homes in the New England area causing the
local water company to load the water up with Sodium Carbonate, raising the
Ph upwards to as high as 9.0-9.5. It does not stay at that level for very
long and testing as little as a couple of hours later I have found the
readings in the tank water to be back in the low 7's after a 50-60 percent WC.
Discus, rasporas, tetras, corys killifish; none have had problems with
temporary major ph shifts.
IMHO i think the average hobbyist is too carefull with how much water to
take out and would do better taking more out and keeping the water at a
higher quality level. I also think that most would do better it they tried to
match the fish to their local water conditions and not tr and keep fish that
really need much different water.
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