Is there a problem with catching adult bluegill from another pond and putting them in mine? If so how many?
I don't see any downside to trying. You either get a sustainable BG population started, or you don't and your "cost" was only the wasted effort of fishing for BGs. (I have failed on some projects where the labor was MUCH less enjoyable than that.)
I would have guessed 40 BG would not have been enough, but Sherwood's example proves it is possible.
Does your water level ever drop a few feet in a hot, dry summer? If so, then you might read a few threads about creating BG spawning habitat. If you helped your BG have lots of babies, then I think you would have an even greater chance of success.
