MarkA wrote:
:: I want to construct a mini wildlife pond in a container approximately
:: 400mm x 600mm x 300mm depth, sunk into the ground. Which (native)
:: oxygenating plants would be best in this small space, and should they
:: be planted in a substrate at the bottom of the container or in pots?

are you sure you've got those dimensions correct? - it will be less than 2ft
sqare and barely visible, with or without plants.

--
If God had intended us to drink beer, He would have given us stomachs.