Great improvement in the pond this year – no smell when the mud is disturbed by walking in it, instead of the unpleasant smell it gave off for the first two years. Discovered the good news when planting a new red water lily, wearing waders.
I wonder why: a better ecological balance now the pond has had time to settle down? Something to do with the fish, now rather large, that escaped from next door? Whatever the explanation, very pleasing to have a sweet smelling pond.