Karen, "usually" problems like that come from out-of-date testing kits. But
the Master Kit should have all been the same date, more or less. The
"freshwater test" - what's its top end? You may have exceeded its limits.
If you're using baking soda to raise your KH, then your pH should balance at
8.3 or 4. But it will stay there, rock solid, without the usual shifts from
AM to PM. The shifts are hard on the fish, so "solid" is better.

Lee

"Karen Mullen" wrote in message
...
I have a question regarding the Master Test Kit by Aquarium
Phamaceuticals.

It has 2 Ph tests, one for freshwater and one for high Ph. If I test my
water using both tests I get different readings and I don't understand
why. If
I use the freshwater test it reads 7.4, but when I do the High ph it reads
8.4
all the time anytime of the day. I believe my Ph is 7.4 because I add
baking
soda to raise the KH, but why wouldn't the high range test show 7.4 also,
it's
part of the color code. Anyone know why and what my Ph really is?

TIA
Karen
Zone 5
Ashland, OH
http://hometown.aol.com/kmam1/MyPond/MyPond.html
My Art Studio at
http://members.aol.com/kmmstudios/K....M.Studios.html
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