yeh, they first said 5.8, then 5.6 and now 5.4.. Strange because I would tihnk their equiptment would tell them the magnitude and that would be that, but clearly that is not the way it works.
Here is some trivia, pH scale is log base 10 same as Richter scale. So 5 is ten times bigger than a magnitude 4. I know you were all dying to know that.. NOT... but the math person in me had to say it!
Glad everybody's tanks are ok!