Instead of a Beck
A long time ago we had a beck at the bottom of our garden - it was great, it formed a natural boundary to our property, gave us the opportunity to have plants that love to have their feet damp all the year round and don't mind the occasional flooding, and we saw so much wildlife in the garden, grass snakes, frogs, toads, herons, water voles and lots of birds who lived amongst the reeds.
Where we live now is near to a river and marshland, but we can't see it from the house - we do get frogs here - anyway I'm thinking of creating a small wildlife pond here. The garden's not big (12m x 12m) and we have the veg patch and two big ash trees as well as The Shady Bank to consider, and I don't really want to run electricity to it for a pump.
What's the smallest viable wildlife pond I can get away with, to be deep enough for frogs etc to overwinter in the bottom, and to have enough oxygenating plants to remain healthy?
And of course, any tips/ideas are welcome.