Routine jobs before the winter sets in.
Remove as many leaves as you can, particularly before they sink. Do this at least twice a day so as to keep on top the the leaf fall.
Trim and remove dying foliage before it rots and affects the water quality.
Think now about starting to reduce the amount of feed you are giving the fish, as the water temperatute is now dropping considerably.
Feed only Wheatgerm based food now. I strongly recommend 'MEDIKOI Wheatgem & Garlic Pellets'
For any help you might need preparing for seasonal changes and indeed for general maintenance of your pond, consider purchasing one of the 'MONTHLY MAINTENANCE PLANS', and put your mind at rest.