Algae starting to form, ID needed

Discussion in 'Algae' started by lowee, 6 Oct 2008.

  1. lowee

    lowee Member

    Messages:
    60
    My nano tank has been set-up for about 6-7 weeks now and since last week algae has started to grow, I gave it a clean out yesterday and as you can see by the pictures it has grown by back very quickly.

    Tank is 28 litres
    2x11W Arc pods
    Dosing 6ml Potassium Nitrate 3x week
    3.5ml Potassium Phospahate 3x week
    1ml Tropica PN+ 3x Week
    50% water change per week
    C02 dropchecker showing green

    Any ideas of what it is? And more importantly how to get rid of it!

    DSC01320.jpg

    Thanks
    Tom
     
  2. JamesC

    JamesC Member

    Messages:
    1,276
    Location:
    Bexley, Kent
  3. lowee

    lowee Member

    Messages:
    60
    Thanks for that James, but after following your guides im still having troubles with it. Im doing 3 water changes a week, increased CO2 and Ferts but still it grows. Im also finding it very hard to remove! I know it says excel, but this stuff is everywhere, so it would need a v.high dose. Any other ideas?

    Thanks
    Tom
     
  4. lowee

    lowee Member

    Messages:
    60
    Still having problems with this, anyone have any idea what might be causing it?

    Thanks
    Tom
     
  5. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

    Messages:
    8,952
    Location:
    Chicago, USA
    Hi,
    As listed on James's site Rizo is nutrient and CO2 related. The first step would be to lower the lighting level to give yourself half a chance. Shut down one of the lamps. Secondly, CO2 or flow must be increased. You have not stated whether your CO2 is 24/7 or on a timer. If on a timer ensure that the gas goes on at least an hour before the lights come on. Also, it is not clear exactly how much you are dosing. For example, "6ml of Potassium Nitrate" is meaningless unless you describe exactly how you prepared your solution, i.e how many teaspoons or grams mixed with how much water? It may be that you simply need to double or triple your dosage but without knowing how much is being fed it's impossible to troubleshoot.

    Cheers,
     
  6. lowee

    lowee Member

    Messages:
    60
    Okay will get on the lighting tomorow. At current I have just had the CO2 coming on at the same time as the lights, but will set that to come on an hour earlier.

    This is the guide I used to make my EI solutions:
    Potassium Nitrate - 40g to 500ml of water and adding 10ml per 100L of water would give you a value of 5ppm.
    Potassium Phosphate - 15g to 500ml of water and adding 5ml per 100L of water would give you a value of 1ppm

    Im also now also only dosing Tropica PN


    Cheers
    Tom
     
  7. lowee

    lowee Member

    Messages:
    60
    Just come back from a week on holiday to find the tank totally over run with this stuff! Spent a good hour cleaing today, but I still dont know how to stop it growing! Anyone?

    Thanks
     
  8. rudedog

    rudedog Newly Registered

    Messages:
    10
    Have you tried using Excel? You don't need to go crazy with the dosage even if you have a bad infestation - it will just take longer to clear if you use smaller dosages.

    Also, do you use a specific reference solution for your CO2 checker or just tap water?
     

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