Problem pond

Theoheckgardener

Any one have any ideas for revitalising a large (100 feet+) natural pond which has deep sediment and high nutrients due to ducks? I would like to restore it to a healthy wildlife pond. I have reduced ducks to five now. 

Ceres

That's a bit beyond the scope of the average gardener. I'm guessing you will need to call in the professionals and get it dredged.

What did you do with the other ducks?

Fishy65

That's a lake isn't it? How deep is it? Amphibians prefer shallower water where the temps are higher. If it's purely for wildlife I'd question having it dredged, removal of the ducks and time should bring the wildlife.

hogweed

Are ducks not wildlife?

madpenguin

Ceres said:

What did you do with the other ducks?

   a l'orange? 

Theoheckgardener

I rehomed the ducks, they are domestic not mallards. Unfortunately dredging is out of the question partly due to access and also cost. The water is about 2 feet but fluctuates with the weather. I thought I would get some Norfolk reeds and see if that helps reduce the nutrients. 

Hostafan1

I think a depth of 2feet is the problem. It'll get very warm in summer and very cold in winter. 
You need a greater depth to ensure you have a depth of water deeper down with more stable temperature.

Bijdezee

I'm no expert, still learning myself but I read that Oxygenators plants like water mares tail, elodea and lots of others eat up the nutrients.

Is there any way you can dig one area of it deeper? Or alternatively fil in a bit and have a bog garden? 

hogweed

I would just leave it to sort itself out. Nature will eventually repair itself or take the best course to suit the conditions. 
By wildlife - what do you actually want the pond to do or be?

Theoheckgardener

Thank you all for your comments. I am going to ask Suffolk wildlife Trust for some advice.