If you are using different wavelength LEDs, I'd definitely go with optics wider than 60*. The colors will not blend well even if the LEDs are right next to each other unless the fixture is raised quite a bit.
If all the LEDs are the same, then you should be fine. I have some cheap Chinese screw-in LEDs that I tried for a little saltwater cube vase. The coverage was good, but the colors do not blend well, I get areas of white and areas of blue.
I usually feel kind of guilty using the quick reply... my replies are rarely quick.