I think if managed well a 6 acre lake is great. Our 6 acre lake has become a fantastic lake over the last couple of years. I just caught a 10 lb bass in January and every time we go out and fish we are catching a number of chunky bass that weigh from 1.5 lbs to 3 lbs and usually one or two that will go bigger than that. We are managing for the middle size slot(1-6 lbs bass). Anything over that we are trying to take out and anything under 10" we are taking out. This was a pre-existing lake that we stocked with coppernose bluegill,crawdads and just this past summer with threadfin. The crawdads never took. The threadfin won't survive a really cold winter but the coppernose are the backbone of this lake. Mange it right and you will have a lot of fun. Good Luck.