This site is supported by the advertisements on it, please disable your AdBlocker so we can continue to provide you with the quality content you expect.
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Diatoms/ green slime near soil

Discussion in 'Algae Control' started by GillesF, Dec 27, 2010.

  1. GillesF

    GillesF Subscriber

    Joined:
    Nov 1, 2010
    Messages:
    404
    Likes Received:
    0
    Hi guys

    I have quite a lot of diatoms near my soil. Not really a problem since it's easily cleaned but it just doesn't look nice. Moreover, it seems that I have some green "slime" near the diatoms approx. 0,5-1cm below the soil.

    What causes this? Is this due to organic waste on the soil? I'm using Colombo Flora-Base and the parts that are infected with the green slime are quite dusty (due to crumbling of the clay). I have almost no diatoms/slime at the back of my tank ...
    It's the only (living) algae in my tank.

    Thanks for your help,
    GillesF
     
  2. barbarossa4122

    barbarossa4122 Guru Class Expert

    Joined:
    Dec 29, 2009
    Messages:
    975
    Likes Received:
    0
    I had the same thing going on in my tanks about 3 months ago and I discovered that the culprit was the Pfertz micro solution I was using, which went bad. Stopped using it and the "diatoms" disappeared.
     
    #2 barbarossa4122, Dec 27, 2010
    Last edited by a moderator: Dec 27, 2010
  3. GillesF

    GillesF Subscriber

    Joined:
    Nov 1, 2010
    Messages:
    404
    Likes Received:
    0
    I'm using an almost new bottle of Easy-Life Profito. I am dosing twice the amount necessary, might try adding less ...
     
  4. barbarossa4122

    barbarossa4122 Guru Class Expert

    Joined:
    Dec 29, 2009
    Messages:
    975
    Likes Received:
    0
    My Pfertz micros spoiled real bad, almost muddy. My fault for not paying enough attention.
     
  5. Gerryd

    Gerryd Plant Guru Team
    Lifetime Member

    Joined:
    Sep 23, 2007
    Messages:
    5,618
    Likes Received:
    17
    Hi GillesF,

    When was the last filter maintenance or substrate vacuum?

    Could it be BGA? This can be caused by low N or dirty conditions. I have had both causes in my tank at one time :)

    I would look first to your overall maintenance to ensure all is well. No clogged/dirty filters, good dosing, regular water changes, etc.

    Is the c02 still performing optimally?

    Just review your setup to ensure all is well, first. Then look to other causes.

    Too much light and not enough c02???
     
  6. GillesF

    GillesF Subscriber

    Joined:
    Nov 1, 2010
    Messages:
    404
    Likes Received:
    0
    Hi Gerry

    Filter was cleaned 3 weeks ago (if I remember correctly, will clean it again this week).
    NO3 is about 30ppm, WC of 50% or more every Monday (yesterday I did 75%)
    Dosing is good but CO2 isn't stable yet (got my atomizer today so that will improve soon). Light is 24w T5 with reflector on 24g.
    I think the problem is the substrate, I've never vacuumed it because I'm afraid that it will suck up all of my HC (which hasn't grown in yet due to the unstable co2). I'm thinking of buying a gravel cleaner which only sucks up the dust/dirt without removing the water. There are no shrimps or snails in the tank (except the snails that come with the plants ofc), only 2 (very lazy) Rineloricaria.
     
  7. Tug

    Tug Lifetime Charter Member
    Lifetime Member

    Joined:
    Jan 5, 2009
    Messages:
    1,150
    Likes Received:
    8
    O2?

    Hi all,
    Green slime sounds like BGA to me as well. You should be able to notice a very distinctive smell if it continues to spread.

    Could there be low levels of O2, H2S in the substrate, high level of organic loading for hydrogen sulfide production.

    Both problems would produce a distinctly foul oder.

     
  8. nipat

    nipat Guru Class Expert

    Joined:
    May 23, 2009
    Messages:
    665
    Likes Received:
    0
    I have a theory. Why most tanks have it in that particular area, even ADA in Niigata. :gw

    Light in the tank bouncing off the glass wall to the substrate area.
    Good light + nearly no flow + out of reach of regular cleaning crews + full of debris.
    This condition may encourage BGA.

    [​IMG]
     
    #8 nipat, Dec 28, 2010
    Last edited by a moderator: Dec 28, 2010
  9. GillesF

    GillesF Subscriber

    Joined:
    Nov 1, 2010
    Messages:
    404
    Likes Received:
    0
    No oder when I have my nose above the tank. When I removed 75% and the water level was at 25%, the tank did have the typical "aquarium/aquatic plants/fish" smell but that's normal, right?

    I had the green slime a few months ago too and I put some on my finger but it didn't smell. I then removed it manually and it hasn't come back in that specific spot (left side of the glass)
     
  10. Tug

    Tug Lifetime Charter Member
    Lifetime Member

    Joined:
    Jan 5, 2009
    Messages:
    1,150
    Likes Received:
    8
    I suppose it could be Rhizoclonium. It's soft and slimy. :eek:

    In any case, the remedies are often the same. Adjust light, improve water flow (O2, nutrients & CO2) to that area and clean up. In this case CO2/flow to that area might need to be improved.
    GillesF, do you have the link to the gravel cleaner you mentioned? It sounds like a neat idea, especially if it would suck up the occasional snail or two.​
     
    #10 Tug, Dec 28, 2010
    Last edited by a moderator: Dec 28, 2010
  11. GillesF

    GillesF Subscriber

    Joined:
    Nov 1, 2010
    Messages:
    404
    Likes Received:
    0
  12. dutchy

    dutchy Plant Guru Team
    Lifetime Member

    Joined:
    Jul 6, 2009
    Messages:
    2,280
    Likes Received:
    1
    A closeup would be helpful.

    regards,
    dutchy
     
  13. GillesF

    GillesF Subscriber

    Joined:
    Nov 1, 2010
    Messages:
    404
    Likes Received:
    0
    Here's a picture, you can clearly see the green (center) and brown (right) spots:

    k0fqma.jpg
     
  14. dutchy

    dutchy Plant Guru Team
    Lifetime Member

    Joined:
    Jul 6, 2009
    Messages:
    2,280
    Likes Received:
    1
    It's very common to have BGA in the substrate where it's exposed to light. Covering it with tape for a few weeks will help, at least for a while.

    regards,
    dutchy
     
  15. GillesF

    GillesF Subscriber

    Joined:
    Nov 1, 2010
    Messages:
    404
    Likes Received:
    0
    Allright, thanks for the info. Any idea if the "dust" in my soil will cause problems?
     
  16. Biollante

    Biollante Lifetime Charter Member
    Lifetime Member

    Joined:
    Jun 21, 2009
    Messages:
    3,210
    Likes Received:
    1
    Healthy Happy Substrate

    Hi,

    As Dutchy points out any place the substrate is exposed to light something is going to grow. Some use cabinetry to hide it.

    For many years I cleaned it, bamboo skewers work well at water change time. :rolleyes:

    Basically it just fades to black for me and I have come to regard it as positive, good for the substrate.

    • Then many consider me crazy anyway...:eek:
    Biollante
     
Loading...

Share This Page