I agree with what you say Sunil. Most pond owner's goals are not so specific and if a rogue bluegill or green sunfish is part of the mix with some fatheads, the world will not come to an end. In the case of your pond where it is very diverse, there wouldn't be any issue at all. A large pond with many species already isn't going to affected by 1 or 10 extra bluegill being added.
Some fish guys maybe that strict and strive to only deliver what is ordered, but at $8.00 per pound or even $10.00 per pound, I don't think you can honestly expect no mistakes. Contamination is going to occur. You have to know that going into it. If you have specific goals, you have to know this and be willing to take the extra step of hand sorting. Otherwise, a few strays isn't a deal breaker particularly if they are not carp! HAHA I think that is why if you have very specific goals for your pond, being able to identify different fish is important. Otherwise, dump em in, and enjoy...
