Posted: 17/11/2014 at 16:39
That is very small DD. Is that the size of the water area or the size including edges? Mine is small but much larger than that. I intend to make a larger one. A small pond is hard work I think......and 30 cm is pretty shallow and likely to freeze. Can you make it 60 cm deep?
A water feature instead? Some of these can be solar powered. The sound and movement of water on a hot summer's day is refreshing. On a rockery running water....small waterfall....is in keeping but whether solar power will be enough to operate it I don't know.
I have a feeling that your feared "midgy" spot may be the result.