I have changed the php file. I have went through all the image settings in admin. but my pop up does not let the full pic show at the original size. the pic shows too small and when the screen is resized the pic stays the same and the big grey background shows up

try to click on the larger image link here http://freshwateraquatics.org/catalo...&products_id=2

I have tried under FF IE and Chrome they all show the same small pic.

I have uploaded the original pic, a small version, a medium version but nothing is working right....so I know I am missing something

Please help me and thanks