Is sphagnum too acid?

[Molch]

Sphagnum moss is awesome. Plants love it, frogs love it.

Just curious...what prompted you to test the acidity of New Zealand Sphag when everyone under the sun uses it with great success?

well, I was confused: one book recommended sphagnum, but also said that any substrate below 6.2 pH or so would be too acid. Well, the sphagnum was at the most pH 6 - so what's up with that?

How I tested: I soaked sphagnum in a small amount of water over night and then tested the pH of that water after 24 hours. I used 3 water sources: river water (original pH 7.4), bottled water (7) and melted snow (6.2).
All 3 water types had gone to 6 or lower (my test kit only goes to 6) after 24 hrs.

Maybe I need a more sensitive pH tester, like one of those digital ones