This is the first view of the pond. At first glance their doesn’t seem anything obviously wrong. The client, a lovely lady from Bedford had called us because she recently lost a few of the fish.
What you can’t see is the build up gooey mud caused by fallen leaves decaying which had completely filled the deeper part of the pond; leaving the fish free to swim in the top few inches of water above only an aquatic compost heap.
Small ponds suffer from this the most and without a filter need annual maintenance