I am now in my fifth year of pond management and starting to finally understand the term "It all depends" and the most famous "what are your goals". My original goal was to have trophy "everything" but now I am starting to realize how much adding one forage to increase bass size decreases bluegill size. How having catfish especially, too many, which is what most of us who have catfish have. Can detrimentally affect almost everything. Introducing anything new changes everthing. Is it good or bad It all depends on your goals and you may not even know for years.