Green pond water

Discussion in 'DIY - Do It Yourself' started by Steve2324, Jun 11, 2018.

  1. Steve2324

    Steve2324

    Joined:
    May 21, 2018
    Messages:
    61
    Likes Received:
    8
    pond is finally finished and I have had the bog filter/ waterfall running for around 2 weeks now.

    At first the water was crystal clear i could see 1.2m down with ease.

    Now it's starting to turn green with algae and I havnt even put any fish in yet.

    I know my bog filter doesn't have many plants yet I have 2 horsetails and 2 small Irises which are starting to grow. On the shelves I have a forgetme not that has doubled in size in 2 weeks and on the bottom of the pond a large lily that's already sent a pad to the surface.

    Do I simply not have enough plants or is this just a natural process that is trying to find a balance?

    Maybe I was naive but I thought all the algae would get sucked into the bog filter and not make it through the gravel.
     
    Steve2324, Jun 11, 2018
    #1
    1. Advertisements

  2. Steve2324

    Jhn

    Joined:
    Jul 3, 2017
    Messages:
    421
    Likes Received:
    442
    Location:
    Maryland
    Completely typical in new ponds, it is establishing a natural balance, your pond water will clear in time. Let it do its thing green water is harmless and will establish the base of the food chain in your pond.

    How bogs work is the plants use up the available nutrients, leaving nothing for algae to consume, so the algae disappears overtime. The bog itself will not trap algae as it is too small and just flows through the gravel with the water. Besides you don’t want the gravel trapping stuff as it will quickly clog up.
     
    Jhn, Jun 11, 2018
    #2
    MitchM and Mmathis like this.
    1. Advertisements

  3. Steve2324

    qclabrat

    Joined:
    Dec 6, 2016
    Messages:
    632
    Likes Received:
    336
    Location:
    NJ
    have you been testing your water? Green water is not unhealthy water and could sustain fish if it is stable. It's important that. I took a while, about 2 months before my water cycled last summer and water cleared almost overnight. At this point, stay patient and if you know the water is safe you fish, add a few and monitor the water chemistry every day. That's what I did last year and all my fish made it though the green water phase okay. I had more problems wintering the pond, where I lost 2. Others here may have differing opinions
     
    qclabrat, Jun 11, 2018
    #3
  4. Steve2324

    Lisak1

    Joined:
    Oct 28, 2013
    Messages:
    5,399
    Likes Received:
    5,910
    Location:
    Northern IL
    New pond = green water. It's nature's way. Until you get fish in the pond you won't have a complete system. Your plants will struggle to grow.
     
    Lisak1, Jun 11, 2018
    #4
  5. Steve2324

    Sparky

    Joined:
    May 10, 2018
    Messages:
    155
    Likes Received:
    131
    Location:
    Ely Mn
    No worries. For a short period there you could walk across the water in my new pond. Been 2 weeks and started noticing improvement a couple of days ago. My residents are already in there. So far the NH hasn’t even touched the scale. But watch it daily. Very important. My small 355 could turn on a dime if something goes a little out. Until it establishes ( which it may not ) I treat it like a new aquarium. Btw, it gets emptied for winter.
     
    Sparky, Jun 11, 2018
    #5
  6. Steve2324

    Steve2324

    Joined:
    May 21, 2018
    Messages:
    61
    Likes Received:
    8
    Thanks for all the replies the reason there is no fish in there at the moment is because I simply can't buy the ones I want until November the only stockist I can find nearby is now out of stock until then. I was too late in finishing my pond by a couple of days and he ran out.

    The water as far as I can tell is perfectly fine for fish now? What tests are you referring to? Aquarium tests ph ammonia nitrites and nitrates?

    My main concern at the moment is my plants I've got on the pond floor I have ludwigia growing on the floor and the green water I'm sure is completely blocking out sun from it.

    I assume this will completely kill all my ludwigia?
     
    Steve2324, Jun 12, 2018
    #6
  7. Steve2324

    Sparky

    Joined:
    May 10, 2018
    Messages:
    155
    Likes Received:
    131
    Location:
    Ely Mn
    Yes the master kit. Your plants I don’t have an answer to. Good question.
     
    Sparky, Jun 12, 2018
    #7
  8. Steve2324

    Lisak1

    Joined:
    Oct 28, 2013
    Messages:
    5,399
    Likes Received:
    5,910
    Location:
    Northern IL
    I don't know how the green water will affect your underwater plants exactly, but the lack of nutrients in the pond will make it tough for them to survive. What type of fish do you plan to add?
     
    Lisak1, Jun 13, 2018
    #8
  9. Steve2324

    Steve2324

    Joined:
    May 21, 2018
    Messages:
    61
    Likes Received:
    8
    I want to get the golden variety of rainbow trout. Along with some minnows as potential food for the trout. Minnows will have plenty of hiding places amongst the underwater plants and the shelf.

    I may have to try and find a very cheap fish that I can just add for now and hope they die out rather than overtake the pond when I add the trout.

    Do you have any recommendations of what fish I should buy to put in there for now?
     
    Steve2324, Jun 13, 2018
    #9
  10. Steve2324

    Lisak1

    Joined:
    Oct 28, 2013
    Messages:
    5,399
    Likes Received:
    5,910
    Location:
    Northern IL
    Well, you won't find many fans of the "I'll buy some fish and hope they die" approach here but what if you added some goldfish with the idea of re-homing them when you are able to get the fish you hope to eventually keep?

    Tell us a bit more about your pond - how big, what kind of filtration, etc. I don't know a whole lot about keeping trout in a manmade pond - do you know anyone who does it? I always think of trout as stream or river fish, but @Troutredds keeps trout in a pond - maybe he will pop in and have some advice here.
     
    Lisak1, Jun 13, 2018
    #10
  11. Steve2324

    Steve2324

    Joined:
    May 21, 2018
    Messages:
    61
    Likes Received:
    8
    Well in nature all fish are the prey of another. A natural pond will always have some fish becoming prey unfortunately.

    Yeah from research I've done trout are perfectly fine in ponds. I have a 9000l pond it's more long than wide and a waterfall with a bog filter at the end.

    I have 35000 lph water pumping to the bottom of the bog that filters through the gravel and then overflows over the waterfall. The water is moving extremely fast so should be very good for the trout.

    I have a tank with my minnows in at the moment in the house than I am trying to breed for the pond as I could only afford 10 of them on the budget I'm on.
    Once I have a few babies being produced I'll be putting them in the pond.
     
    Steve2324, Jun 13, 2018
    #11
  12. Steve2324

    Lisak1

    Joined:
    Oct 28, 2013
    Messages:
    5,399
    Likes Received:
    5,910
    Location:
    Northern IL
    OK - no snark here, but how much do you pay for minnows over there? Here I can go to any bait shop and buy a bucket of them for like $5 - and that includes the bucket! Maybe these are special minnows?

    Anyway - you are correct. In nature, everyone is food for someone else. So maybe add the goldfish and then let it be survival of the fittest when your trout go in the pond. Or get those minnows in the pond and let them start breeding right in their new home! I mean, minnows won't add much to the pond cycle but it's better than nothing!
     
    Lisak1, Jun 13, 2018
    #12
  13. Steve2324

    Steve2324

    Joined:
    May 21, 2018
    Messages:
    61
    Likes Received:
    8
    Well I wanted colourful minnows so the ones I have are actually rainbow shiners - not technically a minnow but very similar. They cost 7 pounds each in uk money but I've just been looking for a simple minnow supplier and it's still 2 pound each and I reckon I'd need a lot more than 10 minnows to make a difference so our price is nearly 3 usd per minnow I could probably go down the local river and figure out how to catch a bucket full. I might do that
     
    Steve2324, Jun 13, 2018
    #13
  14. Steve2324

    Troutredds You can call me Red

    Joined:
    Jul 17, 2013
    Messages:
    829
    Likes Received:
    1,931
    Location:
    Seattle area
    Hi @Steve2324, I hope your plans work to expectation. You have a system that is 2377.55 gallons (9000 liters), that is circulating approx. 9246 gallons (35000l) per hour? That’s a screaming rate of turnover! I’d love to see pictures of the pump that provides such high flow rate. In action, it sounds like your system resembles a recirculating stream-type setup. Cheers!
     
    Troutredds, Jun 13, 2018
    #14
  15. Steve2324

    Steve2324

    Joined:
    May 21, 2018
    Messages:
    61
    Likes Received:
    8
    It's just two 18,000 lph pumps side by side pumping the water to the bottom of my bog.


    Do you think those rates of turnover are too much?

    It's just two of these pond pumps:
    https://www.allpondsolutions.co.uk/18000lh/
     
    Steve2324, Jun 13, 2018
    #15
  16. Steve2324

    Troutredds You can call me Red

    Joined:
    Jul 17, 2013
    Messages:
    829
    Likes Received:
    1,931
    Location:
    Seattle area
    Those look nice. You should be fine. I realize now that the 18,000 lph figure is most likely based on zero head height - head height being the amount your water travels vertically to be recirculated. For instance, our external pump is rated at 14000 gallons per hour, at zero or no head height, but only 12500 gph at five feet of head. Our flow rate, reduced by head height and other factors, is around 10000 gallons per hour. Plumbing diameter, elbows in your plumbing, the force needed to pump water through various filters, etc. etc. - these things all ultimately restrict your actual flow rate.

    Trout enjoy the well-oxygenated, higher rate of pond turnover but beware - small fish may be sucked into your pump intakes or pushed under your bog by the strong current. Make arrangements to prevent this before introducing fish. Here’s one of our rainbows: DD502440-A93C-4EE9-9A27-17066B1E8F79.jpeg
     
    Troutredds, Jun 13, 2018
    #16
    Telion likes this.
  17. Steve2324

    Steve2324

    Joined:
    May 21, 2018
    Messages:
    61
    Likes Received:
    8
    They look great.
    Yeah I calculated the actual flow rate to be around 30,000 lph including the factors such as head and pipe although one thing I was not sure on for head hight so you calculate head above water surface or head above the pump?

    I always thought it would be from the water surface and that's how i got my calculations.

    What can I do to prevent small fish being sucked in?
     
    Steve2324, Jun 13, 2018
    #17
  18. Steve2324

    Troutredds You can call me Red

    Joined:
    Jul 17, 2013
    Messages:
    829
    Likes Received:
    1,931
    Location:
    Seattle area
    Head elevation is measured from the water’s surface to the top of your spillway. Place some type of permeable barrier at your pump’s suction intakes to prevent vacuuming up your fish. Experiment with mesh/netting or other filtering material.
     
    Troutredds, Jun 13, 2018
    #18
  19. Steve2324

    Sparky

    Joined:
    May 10, 2018
    Messages:
    155
    Likes Received:
    131
    Location:
    Ely Mn
    Wow! For shiners? They are neat looking and really popular bait here. Actually there are some cool minnows out there. The northern mudminnow being a favorite. Can’t wait to see the project.
     
    Sparky, Jun 17, 2018 at 2:21 AM
    #19
  20. Steve2324

    Sparky

    Joined:
    May 10, 2018
    Messages:
    155
    Likes Received:
    131
    Location:
    Ely Mn
    Gah what a beautiful fish! The above trout.
     
    Sparky, Jun 17, 2018 at 2:23 AM
    #20
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.