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The green will be much worse in the summer if the pond is in full sun and you will probably find that the water will clear in the winter.
A balance of pond life will clear the water, with oxygenating plants, marginals and water lillies to considerably reduce the surface area of the water in the summer.
Does the pond have a filter or just the circulating pump shown?
Thanks Colin,
That's a good question about the filter, Should it have a filter if its a pond pump?, I'll look at some oxygenating plants and lilies for the summer sun
The green is caused by an excess of nutrient. Sometimes this is caused by organic additions such as grass and leaves but can also be caused by topping up with tap water.
You can remove by filtration, harvesting blanket weed or introducing plants and animals that will eat it. Try Swan Mussels
Have a word with Richard at DWL.
Dorset Water Lily Company, Nursery Office, Yeovil Road, Halstock, Yeovil, Somerset. BA22 9RR
Tel: 01935 891668 or 01935 891792
mailto:dorsetwaterlily@uwclub.net
This guy knows all that you ever wanted to know about ponds, is local to you and is a very nice guy too.
Just say Tina and Steve suggested you.
http://www.ebay.co.uk/itm/12-SWAN-MUSSELS-natural-filter-for-your-g...
David Channon said:
As a pond owner for over 10 years with my newest pond of around 26000 litres, id say topping up with tap water, possibly lack of filtration (ideally turn your pond over once per hour) an addition of a uvc filter can help to kill algae prefilter. hope this helps
PS I use all diy filters easily built if the current filter can't cope.
Oh wow, information over-load, this is all great information, I'll be going to site with information like I've been looking after ponds for years
Thank you all so very much
There are many factors which can cause excessive algae growth in ponds, the most common being high nutrient levels. This can be caused by fertiliser run off from lawns, flower beds, etc. Try not to use ferts around the pond if possible.
Another main cause is the water surface receiving too much sunlight, as a general rule you should cover about 1/3 of the surface area of the pond with floating plants such as water lily, duck weed, etc. This will reduce the amount of light getting down into the pond and in turn reduces algae growth rate.
Clean the pond out regularly to remove decaying organic matter (leaves, dead plants, etc) as they release nutrients into the water as they decay.
I will agree with that, we bought some large water lily from here for one of our sizable lakes that we look after and boy does this guy know his stuff, he made some suggestions based on what the client wanted and these lily did rather well, I hope we get some more funding to get some more this year.
In regard to keeping the water clear the same lake when we took it on had a scum and algae problem, we used products from http://www.hydra-aqua.com and again if you phone their help line they can suggest the right products. Our lake was free from all algae this year with a mixture of planting and treating the water.
T & S Plants said:
I totally forgot to call Richard today at DWL, I'm gutted, I'll set a reminder to call him tomorrow.
Thanks Busy Bee, I'll also look into your link
All great help