Fixing a leak in my compression fitting

Thanks for the responses.
Shark bite did not work with my Qest pipes...Apparently shark bites need pressure for them to be sealed so when I turn of the water pump water was dripping from where the pipe was inserted.
I had to buy Qest fitting with the crimp and pincher to get this connected. It is somewhat fixed cos I still have some water oozing very very mildly between the nut and the crimp.
I am going to just seal it with rescue tape.
Here's a picture of the fix.
http://www.flickr.com/photos/84864561@N08/9250490301/

You have Qest brand pipes and fittings and that's not a compression fitting, it's just a crimp. If you have enough length, just cut it off cleanly at the back of the crimp and purchase a Qest compression fitting to replace it.
Those crimps are notorious for failing because they're made out of aluminum and they stretch over time. If you can find replacement copper crimps they will last forever but compression fittings will also last a lifetime.

I replaced a leaky fitting with a shark bite this spring, and so far, so good.