Dragonflies - how to attach them
 

I've just finished setting it up, at least I think I have. It's about 18ft
x 16ft approx triangle and about 34 inches deep.

I am thinking about Koi, but for the moment I will stick to goldfish until
I have more experience with pond management.

Does anybody know how to attract dragonflies to my pond? Could I buy
dragonfly eggs or nymphs?

TIA
ANO