4 month old pond green

Discussion in 'Water Chemistry' started by Jutt, Mar 19, 2017.

  1. Jutt

    Jutt

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    So Back in November / December we upgraded our small preformed pond to an approx 1000 Gallon pond (8x8x2.5 ).
    The pond looked superb,fish were happy and everything was great. and the water was crystal clear.
    https://www.gardenpondforum.com/threads/upgrading-new-pond.20548/
    Then spring arrived, it got hot and pollen started appearing. At the moment the pond water is a murky green, Could this just be due to the hot sun? atm the daily temps are in the 60- high 70s,, pond is in the sun most of the day.
    Im using a Tetrapond 1000 GPH pump with the additional pre filter on the end,and this goes into a 4000GPH Bio Filter with 13W UV sterilizer ( i dont use the UV sterilizer, should i use it ? )
    http://www.ebay.com/itm/4000-Gallon...641513?hash=item58d3915e69:g:DBwAAOSw~otWhGAK

    As of yet, i havn't tested the water, i figured id ask here first, just wondering if what i have set up as filtration ,isnt working well?
    Thanks :) 20170319_144923.jpg 20170319_144933.jpg 20170319_144951.jpg
     
    Last edited: Mar 19, 2017
    Jutt, Mar 19, 2017
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  2. Jutt

    Meyer Jordan Tadpole

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    4 month old pond experiencing it's first Spring. Still establishing a biochemical balance. You can use the UV but need to provide the means to filter out the dead algae otherwise basic imbalance is not addressed.
     
    Meyer Jordan, Mar 19, 2017
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  3. Jutt

    bagsmom

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    Pollen has started here in GA also! I have a brand new pond and it sounds just like yours. I'm guessing it's a Spring Thing! Mine is leprechaun green.
     
    bagsmom, Mar 19, 2017
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  4. Jutt

    Meyer Jordan Tadpole

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    It is. In natural ponds and lakes, algae blooms occur every Spring. Interestingly, If a bloom does not occur, it is a sign that the pond is lacking.
     
    Meyer Jordan, Mar 19, 2017
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  5. Jutt

    Jutt

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    So basically,leave it alone? :)
     
    Jutt, Mar 19, 2017
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  6. Jutt

    Meyer Jordan Tadpole

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    You might reduce the amount of food that you are giving the fish each time. But yes, I would leave it alone unless its gets much worse (greener) than the photos show. It should quickly clear on its own once the zooplankton population peaks. Zooplankton eat algae. Fish eat zooplankton. Establishing a natural food chain.
     
    Meyer Jordan, Mar 19, 2017
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  7. Jutt

    cas

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    Ah, yes, the spring algae bloom. :)
    Here is a picture of my pond last June, during and after the bloom. I did nothing but wait it out.
    Comparison 2016 June 8 and 11.jpg
     
    cas, Mar 19, 2017
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  8. Jutt

    Meyer Jordan Tadpole

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    @cas , have you noticed any difference in your pond this past year as compared to previous years?
     
    Meyer Jordan, Mar 19, 2017
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  9. Jutt

    cas

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    Each year the algae bloom doesn't last as long and the water is not as green. So far this year I am waiting for the snow to melt! ;)
     
    cas, Mar 19, 2017
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  10. Jutt

    Lisak1

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    Your ponds are just observing St. Patrick's Day! ha!

    Waiting this out is probably the toughest thing to convince a new pond owner to do... this is where the "chemical chase" usually begins. Be patient. Be observant. Be confident. It'll pass.
     
    Lisak1, Mar 19, 2017
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  11. Jutt

    Meyer Jordan Tadpole

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    I will venture to guess that your Winters have overall been warmer and/or shorter than average.
     
    Meyer Jordan, Mar 20, 2017
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  12. Jutt

    Usman

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    it looks very healthy for fish , i see lots of food for them yumy may b its spirulina, ,may b u can replace some water , hope it ends soon this bloom as u like clearer water
    pond may b lacking shade .... border tall plants
     
    Usman, Mar 20, 2017
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  13. Jutt

    Tula

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    I agree, it'll clear up on it's own. In my pond, I like to tun my water over more than once per hour and add aeration.
     
    Tula, Mar 20, 2017
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  14. Jutt

    CometKeith

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    Your beneficial bacteria (bb) has not started up. Once it does they will compete with the algae for nutrients and the green will clear up. This is called "cycling a pond". Algae doesn't hurt anything other than it's nasty appearance. It provides food for your fish, camalfloge from predators, and it gets rid of dangerous nitrites that can build up from fish wastes. Once you start dumping in chemicals to get rid of the algae your pond may never cycle, so it's best to be patient. If you don't have a bio-filter you should considering adding one because that will give "bb" a place to grow.
     
    CometKeith, Mar 20, 2017
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  15. Jutt

    Jutt

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    Thanks for all the input guys,greatly appreciated .

    I do have a bio filter along with a 1000 GPH pump with a pre filter on that. the Bio fiiter has UV sterilizer built in ,but i havnt used that.
     
    Jutt, Mar 20, 2017
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  16. Jutt

    Waterbug

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    UV is 100% effective in clearing green water when used correctly. Correct flow, bulb still powerful enough, glass sleeve is pretty clean, etc... Since you have the UV already and sounds like you don't want green water I'd fired it up. Don't worry about removing the killed algae, it will decompose on the bottom. Vacuum if you like.

    As to why your pond turned green...no one knows. Lots of species of algae, and science hasn't even for sure decided on whether they are plant, animal or bacteria. We know very little about algae life cycle. Given limited info people often draw conclusions that don't generally hold up very well. Here are a few favorites...

    Green = photosynthesis = sun. If your pond is green it must be getting too much sun. Yet there are millions of ponds and bodies of water in full sun that are not green. And in full dense shade there are many that are green.

    Green = nutrients. Yet virtually every single crystal clear on the planet has higher ammonia and nitrogen levels than every green pond. If you test your pond I'd be betting zero ammonia and zero or very low nitrogen. I know this because you pond is green. That means conditions allow for algae growth and they consume all ammonia and nitrogen as soon as it becomes available. When your pond clears ammonia and nitrogen can increase...a lot. So if ever there was a time to test ammonia it is when you do something to clear a green pond, like turn on a UV. Algae consume ammonia directly so bacteria that convert ammonia don't multiply as much and when the water suddenly clears there's a little while (few days) when ammonia consumption is low and it can build up.

    Temperature = spring = green. Yet many ponds stay clear all year, for years and years. And many ponds stay green all year and stay green for years and years.

    Balance = ??? I don't even know what that means other than if your pond is what you want it must be in balance. A green pond is every bit as natural as a clear pond...maybe more so. We generally push ponds to be clear.

    We do know, thanks to Norm Meck, that clear pond water often (we don't know percentages) contains a chemical that kills green water algae on contact. A poison if you will. What produces the chemical isn't certain, Norm's theory was a bacteria produced it. My theory has been it's produced by other algae, bigger algae like string algae, based on my own experiments and also that this type of behavior is common for organisms (allelochemicals). It's been seen in saltwater algae but freshwater algae hasn't been studied as far as I can tell. There is evidence coming from aquarist using string algae but they seem confused on why it works. Still, best theory I have.

    What this all boils down to...

    UV is 100% effective when done right, but watch ammonia. Often UV can be turned off after a week or month as string algae (macro algae) starts to grow. And you may never need to turn it on again. Then you'll want to know how to control string algae.

    Trickle Towers and streams can be very effective because they give string algae a place to grow where they can get more sun, O2 and over come the defenses produced by the green water algae.

    24/7 drip water changes can be effective. It basically flushes alway algae faster then they can reproduce and also gives string algae a better chance to grow.

    Beyond that there are dozens, maybe hundreds of "cures". Magnets, barley straw, salt, bacteria, phosphate binders, etc... It's endless. And I'm pretty sure if any of them actually worked there wouldn't be hundreds of "cures".

    That brings me to the point...be careful of the internet. I've seen more ponds filled in by people after trying dozens of "cures" promoted online and feeling like failures. #1 reason more people don't keep ponds are the pond "experts" promoting silliness online.
     
    Waterbug, Mar 20, 2017
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  17. Jutt

    tbendl T

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    tbendl, Mar 20, 2017
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  18. Jutt

    Jutt

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    WOW, Waterbug, thats alot of good information :) ... i'm pretty sure the pond is getting too much sun, the sun hit the pond first thing in the mornings,,all the way through the day till approx 4pm and later as the days grow longer. over my previous pond we did have a sun sail , so today i put that up which covers a portion of the pond.
    Maybe ill try turning on the UV for a few days or week , see how that works,,,
     
    Jutt, Mar 20, 2017
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  19. Jutt

    CometKeith

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    Actually that was a lot of good info from wb. Every pond is indeed different. My last pond was in partial shade and only got a few full hours of sun everyday. As a result it never got very green. if anything it would get a brown algae in the spring. I always knew when it cycled because litterally all the string algae would dissapear overnight. A few things that worked for me is I never turned on my uv light until my pond cycled this way I left the algae unharmed that was keeping my ammonia and nitrite levels low. Also I barely fed my fish until the pond cycled to keep excess nutrients very low. I have a new pond and it will get lot more sun so I'm sure I'll have to do things a little differently this year.
     
    CometKeith, Mar 21, 2017
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  20. Jutt

    budgenator

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    I think most of those "cures" fall into the "it helps a little bit, sometimes" category, but I have been tempted to try the magnet for grins and giggles sometime. I know the EPA shut down the magnet purveyors for selling an unregistered herbicide, but that's not the same as ineffective.
     
    budgenator, Mar 21, 2017
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