Posted: 17/05/2016 at 15:19
that's not a pond....its a small lake!!!
if its for wildlife then try and stick to natives, or domesticated versions of natives. you can however add some non native but be careful - stuff like skunk cabbage are on the edge of being banned due to the invasiveness of the growth habits and stuff like parrot feather ARE banned, despite still seeing them on sale in less reputable growing establishments!
try and get some mud from the bottom of an established wildlife pond as it'll have all the microbes and beasties you'll want in your pond.
small fish are fine (sticklebacks/minnows etc.) for a wildlife pond, goldfish or koi will eat everything.
make sure any plant you are planning on getting are researched, don't get flag iris or bulrush (Typha) as they'll take over in a matter of a couple of years