I take enough resources to make a good nuc. But since i'm all mediums a good nuc doesn't cost the hive all that much. Today I was down to 3 frame boxes so it really didn't take much. A frame of brood, one of food, one of foundation, and a good shake of bees. You would be amazed how fast they fill that up. All of my 4-5 frame boxes are in use, but in a few days they will all be ready to graduate up a size. It all works out.