Yet another algea question, again!

[27goldfish]

I will post links to all filters I have. I get green water. Full sun, which will change hopefully this year with the building of a pergola. My water turns green. Never floating algae. Here are my filters:

http://www.lagunaponds.com/lagunaeng/filters/pffalfiltspil.php?link=158

http://www.sunterrausa.com/filtration/product/300307

http://www.tetra-fish.com/sites/tetrafish/catalog/productdetail.aspx?id=1276&cid=407

http://www.tetra-fish.com/sites/tetrafish/catalog/productdetail.aspx?id=1276&cid=375

(this is the pf1)

http://www.pondmasterstore.com/home/pm1/page_49_14/pm_1350__kit.html

Now for the feeding pumps:

Feeding the sunterra piece and laguna piece (output of sunterra to laguna)

http://www.tetra-fish.com/sites/tetrafish/catalog/productdetail.aspx?id=1276&cid=396

Feeding pf1 and uv light:

http://sunterrausa.com/pumps/product/200850


Any ideas? I have been battling this for awhile. I do weekly partial water changes. Help please. Is there something I am missing? I know about the doc filter, but from my understanding it is essentially like my PF1.


Edit: The pondmaster piece is using this kind of filtering material:

http://cgi.ebay.com/EP-Pond-filters...044?pt=LH_DefaultDomain_0&hash=item4aab0636a4

 

[Malak]

Is this a new pond? If so, it may take 4-6 weeks for everything to be established.
Don't overfeed and don't feed everyday if the water temp is only in the 60s.

 

[27goldfish]

No, this pond is well over a year old.

 

[Malak]

What % of the surface is covered by plants? You could always use something artificial that floats till the plants start growing more. Black plastic snap lids maybe?

 

[27goldfish]

I have hardy lillies slowly coming up with a little water lettuce. Working on that too. Last year I had about 35% surface coverage from my lillies alone. Same thing.

 

[addy1]

hydrogen peroxide works for getting rid of it. I used in arizona to kill off string algae.

 

[Malak]

How much do you add?

 

[addy1]

I used 1 liter per 1000 gallons, my pond in arizona is 14k gallons so 14 liters. I have not had to use it in my maryland pond.

(just goldfish and shubunkins)

 

[27goldfish]

no affects on the fish/plants with hydrogen peroxide?

 

[addy1]

Not in my arizona pond, I would pour it in the stream so it was mixed well. I heard someone say it bothers koi, but I don't have koi.

The ratio I picked up from reading a site of the correct amount to use.

 

[27goldfish]

I have koi, that may be a problem

 

[sissy]

try extra oxygen in your pond I am still wondering if that is why I have no algae

 

[addy1]

I have koi, that may be a problem

You may want to do a search, one person said it bothered them, some said it did not. From what I can recall they were also saying the peroxide is the end product of the barley straw bales, I know people with koi use barley straw.

The one person said it caused red gills, the other person said koi have red gills. I have no clue lol.

 

[sissy]

nothing is straight forward and you never know which is right or wrong or what really works or doesn't or way is to try a small amount and just watch closely to see if it effects the fish .

 

[stroppy]

did you put a new bulb in your uv this year as they only last about a year ? also is the uv light big enough for your pond ? air stones will help, but barley straw isnt for green water i don't think