Am I colour blind...?

[andsoitgoes]

I'm having one hell of a time actually reading the PH and other type tests. I know I don't have the high-end brands, but I still think I could get an accurate idea as to what's going on.

The kit I have is a hagen "master" test kit - it's been very useful in some ways to help me keep an eye on the general ideas of the tank levels, but now that I'm getting more into salt, and things are getting a bit more "pinpoint" - I'm having problems.

For example, I have yet to take a ph reading that I can accurately say "Yep, that's x.x" - it was the same with my freshwater tanks, but accuracy wasn't as important.

I want to do this right, and I want to succeed - but I don't want to spend tons of money on electronic monitors or test kits that are 5x as expensive just to run into the same problems.

Anyone have any suggestions?

Thanks,