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Title: Green Water And Algae

megan123 - June 12, 2010 03:41 PM (GMT)
Hi Everyone
We built a couple of clay farm ponds about 4 years ago, and they are still both green, I read that the first couple of years was normal and not to worry. The water has smelled really clean and I only put plants in the smaller first one, because I wanted it for fish,
cattails, and plants like elodia, weighted them down and don't know if they are still there.
I haven't put any fish in yet, as I am waiting for the water to be better quality.The first pond is about 4-5 feet deep and about 60 by 60, and the over flow goes into the second pond which is 8 feet deep and about 130 long by 50 wide irregular. I didn't want any plants in it, because we have been using it for swimming. We have bottom airators in both ponds. I was told also that the clay has a tentancy to turn the water green. My problem is that this year there is algae all around the big pond, nothing in the small one.
So I started putting plants in the bigger one, to try and oxegenate it, with no difference.
I tryed raking out some of the algae but you can seem to get it all, some of it breaks off and floats away. I don't know if this is a good idea or not. The algae is light green and looks like a cloud under water, and when it comes to the surface it goes yukky yellow.
My pond is only filled with water run off, because it sits down grade in somewhat of a gulley and was always a swampy area, we don't have any water filtration system because the water can fluctuate quite a bit, depending on the weather. I am hoping that some one could have some suggestions about what I can do. ;)

Robyn - June 13, 2010 12:10 AM (GMT)
Welcome to the forum!

There is also only in the bottom pond and not the top but they are connected? That sounds strange. Have you tried adding bales of barley straw? The aeration and water movement would have been my first suggestion along with plants. Without plants, it will be hard to avoid suspended algae. You might try adding black dye to the water. Places that cater to larger ponds will push algaecide and herbicides but I wouldn't use those. Could some of the water that runs in to the pond be picking up fertilizer? If so, then fixing that would help. I hope someone else has some more ideas.

Good luck!

Broxandval - June 13, 2010 08:12 AM (GMT)
Hi megan123
There are also other methods you could use like using the extract of barley sraw, adding montmorillionite clay in a mixture can starve the akgea thus getting rid of the bloom :)
There was a product called crystal advertized last year but I've yet to hear back from anyone trailing but here's the link to their website for you to make up your own mind about it :) :-

Which ever you decided let us know what worked for you :unsure:
broxandval Fishiedude Flowersmile

megan123 - June 18, 2010 01:36 AM (GMT)
Thank You for the great suggestions, and yes Robin the one pond will flow into the larger one with the algae when we have allot of rain. And we don't use any fertiziler at all. The house is probably about 400 feet away from the pond. It is mostly forest that is the runoff. I did check out the barley straw and the bales were like really tiny and very expensive, I remember thinking that they must be kidding. The pond dye sounds interesting, has anyone used it before, I have lots of frogs and now tadpoles in both ponds. Kinda scarey. Is the purpose of it to not let in any light so that the algae dies? Do you know how long the colour would last. I emailed about the hydra aqua, it looks almost to good to be true, when you watch the video, quite interesting, has anyone used it, they haven't got back to me yet. It is an American company, and UK, and not sure about shipping chemicals over the border, and also wanted to know how much I would need. I live in Canada just north of Toronto. I raked some more of the algae out today, and went around the small pond and no algae in it at all, and it is quite clear, I can almost see right to the bottom.

Robyn - June 18, 2010 04:50 PM (GMT)
You can get bales of barley straw locally for only a few dollars. The ones sold just for ponds in tiny amounts tend to be overpriced. Just ask some local farmers if anyone farms barley.

Here's an example of a woman near me who sells bales. She's charging $40 for a 30 pound bale including shipping (but not to Canada of course). I bet you can get it cheaper locally.

Pond dye is just that. It blocks light to the algae (and plants). Most are supposed to be safe for the animals. Here's an example on a pond dye. This one says it lasts for 4 months.

Broxandval - June 18, 2010 04:57 PM (GMT)
Hi megan123
We have to go with Robyn on this one sourcing it locally is the best way to go on this and probably the least expensive option
broxandval Fishiedude Flowersmile

megan123 - June 19, 2010 03:28 AM (GMT)
You guys are great, I was getting really discouraged about the pond, and now you both given me some hope! I really appreciate it. I'm going to put an ad on kijiji tonight and see if there is any barley straw around me. I live in the country but most people farm corn and soybean around me. I hope someone is doing the square bales and not the big round ones, you don't see much of the square ones anymore. I think I'm going to try that first as it sounds more environmentally friendly. If not I'll look more into the other suggestions, I'll have to investagate more into them.
The hydra crystals look great, but 1 lb only treats 1500 gallons. That would cost a fortune. The dye sounds more feasible as 1 gallon treats 1 million gallons of water, and it only costs about 60 dollars for 1 gallon. I do hope I find the barley straw, and it works, because I leary of the chemical dye. it would also kill the plants that I just put into it. Thanks again for all your help

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