Water changes will help speed up the cycling process a bit. It will also help protect some of the more sensitive life on your LR. I would say 15-20% weekly until your Ammonia/Nitrite/Nitrate levels all read zero. Then you can start adding fish slowly, one (or two small ones at the most) per month. If you decide to do a w/c don't forget to aerate your mixed water for 24 hours first.
