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I have a new pond built this March 09 I have oxygenators marginals a water lily and a water hawthorne in the deep water but they have not got going yet now I have algea which is very green it is not blanket weed I cant pull it out will putting in barley straw help untill my plants get big enough to cope with excess nitrogen would putting in a pump help although I did want a natural pond to attract frogs etc.
That's a really good tip, but how does one get rid of Duckweed (you know the little green single 'leaf' stuff)? I have oxygenators and a filter/oxygen pump feeding a little fountain, but can't seem to clear the duckweed short of spending hours with a seive!
very useful - thanks! have had a wildlife pond for years and no problems but have developed excess algae this year. After watching this I had a thought and followed the dog outside. He is weeing and it is running into the pond causing nitrate levels to increase. I have moved him away and also put in some barley straw. Hope the frogs appreciate it!
I've just bought a tree fern. It's about 4ft. Where is the best position tp plant it in my garden, or is it best left in a pot? I live in south wales. We get sun at the back for most of the day then it disappears behind the neighbours house in late afternoon.


I'm emptying a pond can anyone tell me what to do with the dirty water? Is it ok to use it on the garden?

I know that this is a very old thread, but I am surprised that no-one has replied to dottiesue above. So if anyone passes by, looking for an answer to her question; yes. Yes yes and yes!

Pond water is perfect for the garden and pot plants.

I have a pond with a water fountain, I noticed the other day that it looks as though there is washing up liquid in it!  There isn't though, I wondered if this could be some kind of algae?  I will try to get it off the top of the water if I can, not very supple I'm afraid!! ( Me that is, not the water! ).   

Just wondered if anyone knew why that might be happening?  I have frogs and newts in the pond, I don't want anything to hurt them of course....I also have water Lillie's and water Irises.

 Thank you folks.


I cant help with the "washing up liquid" problem, I've never had thatbut I was wondering if anyone could tell me if I can start thinning out my oxygenating weed yet. It's a wildlife pond full of young newts and I don't want to upset them. It's Canadian pond weed, a present from a friend when I was starting out (beware of Greeks with gifts etc) and it's very vigorous! I'm sure the newts etc are walking on top of it!

Thanks X


If it's taking over you can pull bits out Carol. It can be a bit too vigorous, especially for  a small pond, but it's harder to get it out of a big one. We had frogs mating on top of ours at last house.  

Leave the pieces you remove at the side of the pond for a few days so that any resident wildlife can get back in the water. You can put it in your compost bin afterwards if you have one. 

Just looked at that previous post and I suspect that it's just the blanket weed starting into growth  - right time of year. It 'explodes' as soon as the water starts warming up in spring.


If your pond isn't too big you could take out some of the weed a bit at a time and put it in a bowl of water and gently remove the baby newts to another bowl and put them back when you've done.

If they still have external gills (feathery bits sticking out) they need to be in water to live. Keep a watch out for other desirables as well, dragonfly larvae etc, 

Looks like we all missed Chrissie's question, sorry Chrissie. Water is never pure, there are all sorts of things in it. A fountain stirs it all up and mixes in air and it all froths up.

Thanks Fairygirl I will take your advice and give it a go. The baby newts will say thank you to. They'll be able to swim


You know they say you can have too much of a good thing Carol....Elodea is like that  

It's probably best kept in a basket rather than just chucked into the water, which is what's always recommended unfortunately.

I wondered if it was just the fountain too nut, but looking at the timing of the post it occurred to me that it might be blanketweed starting. I sort of assumed it was a new  issue though - not exactly sure why! A few pix or some more info would have helped to resolve the problem though, so it's a pity none of us saw it 

Thanks to you too Nut, the bowl of water is a great idea. My pond is quite small so this might work well. Maybe in a couple of months get rid of the Elodea and go with another plant.


Oh gosh, I have just chucked in to float, a big bundle of Elodea, I did put some other things in pots with chippings on top, should I rake out the loose plants and pot it up?



It can be a problem if it takes over and your pond is quite big - it means wading in. I've had ponds of differing sizes and it's fine if you can reach the bottom fairly easily from the pondside to pull bits out , but in a bigger pond I'd stick it in some baskets with  gravel on top to keep it weighted down. It roots into the floor of the pond but if it's in a container you can hook it out more easily and keep on top of it. 

I put 100 oxygenating pondweeds   in my wildlife pond( which has no fish) but a couple of weeks later they have all lost their leaves although the stems are still there. Any ideas? will they survive and regrow? they looked very healthy when I~ put them in.



We found that the larvae of Diving Beetles were feasting on some of our oxygenating pond plants - they seemed particularly fond of Hottonia palustris -the Water Violet.  They stripped the leaves from the stems - we sat and watched them doing it!

The plants grew new leaves later on. 

Hello All,

 No worries now!   My water is great again now!!   I don't know what that was all about!!  Ho Hum....

Watch this space though, I may be back again with another question....

Take care all.

This is great! I just know the basic but this strategy I think is the same thing that I found in I think I should try this and get the best result for my garden pond.