How do you know if your pond needs to be cleaned?
If you disturb the bottom of the pond with a net, and bubbles appear at the surface, very often with a foul odour, then that is a sure sign that the pond needs to be cleaned out completely in order to minimise any build-up of toxins which can be harmful to your livestock.
Pond cleaning is a very dirty job indeed and it needs to be done properly. We recommend cleaning out fish ponds about every three years. You generally leave wildlife ponds a little longer than ornamental ponds – three to five years.