Do i need to fit a fan grill above my cpu cooler?

Hi
i bult my first pc back in january and the case i bought was the antec veris remote black, the cpu cooler i ended up buying for it was the GeminII SF524 to fit on a amd 960t be cpu but the total height of the cooler is 105mm and i have about 10mm clearance left to the top of my case with it fitted and was happy with how it performed. have done a bit of reading on the web since then and read on a few forums that there should be about 25mm clearance above a fan for it to work proberly, so was thinking would i be better to cut a hole above my fan and fit a grill? or just leave it as it is as?..........my temps at the moment are 21c at idle and after running prime 95 for a hour under 100% load are 37c...thanks for any advice you can give

no just leave it those temps are fine.

Temps are fine, + the case fans will be doing potentially most of the cooling anyway in your case.

thanks for the replys guys...looks like i will be lleaving it as it is then :-)