> From: "David Grim" <grim1214 at bellsouth_net>
>
> I have a Hagen pH test kit about 6 months old and bought a Tetra pH test
kit
> to compare the two.
> Anyways, the two kits gave me some very different readings, as much as
.5-.6
> units of pH for each tank (3 of them) by my eye.
[snip]
If you are serious about doing testing (i.e., you want results you can trust
and plan to take action based on those results), invest in a decent test kit
right from the get-go. Ya, sure, LaMotte and Hach test kits cost more to
start with but refills are real cheap (unlike those hobbyist kits where the
"refill" is a new kit).
[snip]
George Booth in Ft. Collins, CO (gbooth at frii dot com)