Redox???

[24storm]

Does anyone have any information on Redox.
I have a Profilux with a Redox probe and i am having a hard time finding information on the readings. What should your Redox reading be? I have found some sites that state it will be 450 and yet others say that if it gets to 450 your in trouble.

If you have a Redox reader what is yours currently at. Mine when i left this morning was at 268 but i did a water change on Wednesday so that is why it is so low. Before the water change it was hovering around 400.

I do not quite understand Redox so if anyone can give me some insight i would appreciate it.

Thanks Keith