I don't know.... I think it's possible to have too high a pH, with rock
solid KH, so I'd still have a pH test kit on hand. Otherwise, ammonia,
nitrite & nitrate are the important tests, but in a planted pond, and
frequent partial water changes, nitrate shouldn't be a problem, but that's
not to say, the test isn't worth by-passing. ~ jan


See my ponds and filter design:
http://users.owt.com/jjspond/

~Keep 'em Wet!~
Tri-Cities WA Zone 7a
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On Thu, 08 Apr 2004 23:35:06 GMT, "RichToyBox" wrote:

Don't worry too much about the pH. If the KH is around 100 or higher, then
the pH will be rock solid in a range acceptable to the pond fish. Salt
level is one of those things that some want salt, others don't, and there is
no convincing the other side. The salt level for treating sick fish is
0.3%, but for most plants, a level higher than about 0.1% can be hard on
them. Nitrates are a low level irritant that if the numbers get high can
cause problems with fish health. The recommended maximum is 25ppm, though I
have never been able to get that low.