I'm an untrained newbee with two hives. I live in an urban area with a smallish yard, so I don't have much room. One hive was started with a package on April 5th and is doing quite well. The second was started on May 23rd and is coming along nicely. They are in the corner of my back yard about 5 feet apart and I haven't noticed any robbing or friction between the two but I'm worried whether I'm courting trouble in the future.