Increment slider values independently

I have a list of UI sliders that I increment with the update function. What i want to do is stop an INDIVIDUAL slider once it hits a certain point. But the problem is when one of the sliders hits 0.75f, all the sliders in the list stop incrementing! Any help?

BUMP This up I need help with this little problem and suggestions would be greatly appropriated!
I have already tried using a foreach loop and the results were the sameee.