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unidentified dark algae

Discussion in 'Algae' started by jfravn, Oct 3, 2010.

  1. jfravn

    jfravn New Member

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    Hi there,

    I get this dark algae on the tips of stem plants. Could you please help identify and suggest remedy, thanks!

    [​IMG]
    [​IMG]
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  2. Jurijs mit JS

    Jurijs mit JS Admin Staff Member

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    maybe cyano?

    looks like BP oil infestation though 8)
     
  3. Supercoley1

    Supercoley1 Moderator Staff Member

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  4. Shadow

    Shadow Moderator Staff Member

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    Is the algae smell bad? It is look like BGA (blue green algae) only its black.
     
  5. jfravn

    jfravn New Member

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    Thank you for the replies. I considered BGA myself. I haven't smelled it, but its easy to get off the plants. I have had staghorn before, and it's not it.

    @Supercoley: The plants are in direct light and in good flow.
     
  6. wearsbunnyslippers

    wearsbunnyslippers New Member

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    looks like bga/cyano to me too...
     
  7. jfravn

    jfravn New Member

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    Thanks again. Has any of you ever had it on new tips of stem plants only? It's a really strange behavior! I will try and cut of the infested parts and see whether it helps. Otherwise I have to make a blackout, hrmpf :(
     
  8. viktorlantos

    viktorlantos Aspiring Aquascaper

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    it is BGA if it's slimy and have a bad smell. But from the hairy look i had a bet on another.
     
  9. Scifficus

    Scifficus New Member

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    99,9% is BGA. Unfortunately i have almost every algae and I know what is what. Here a site where you can find some info. GWAPA:
     
  10. Shadow

    Shadow Moderator Staff Member

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    I seen my friend have it at the tip of moss only.
     
  11. Supercoley1

    Supercoley1 Moderator Staff Member

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    Well it sure looks like this to me!!! That black stuff in your pic definately does not look like BGA to me. You can see the texture of it in your second picture. It is fibrous.

    This is one of the staghorn pics on that algae guide. Same as yours except yours is resting backward.

    Very common algae in tanks with bad spread of light. Lights that have bright lights that are very intense in the centre of the tank and not so intense towards the perimeter. The plants affected are usually the ones in the centre of the tank under the light, where plants on the permiter are unaffected.

    [​IMG]

    Best solutions are to raise this sort of lighting up to get a better spread and then get the CO2 working better. May well be a flow issue in that the flow is blasting one area and not others therefore it is starving the nutrient/CO2 from an area by moving it on and then it settles in the lower flow area. Flow needs to be good all around the tank.

    AC
     
  12. Xavier

    Xavier ASW Sponsor

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    On a side note, you are good at taking close-ups.

    If it does get identified in consensus as cyano, I have a trade secret cure-all for it I can share.
     
  13. Garuf

    Garuf Moderator Staff Member

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    3 day black out then 2 back to back 50%+ water changes. Increase water changes, increase KNO3 and increase flow, also, be extra vigilant on muck in the tank and remove as much as possible.
     
  14. littlefish

    littlefish New Member

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    BGA I think so too
     
  15. wearsbunnyslippers

    wearsbunnyslippers New Member

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    can you share the trade secret anyway?

    i tried for ages to get rid of this, only things i didnt do where the blackout and erethromycin.

    i tried the increased co2, increased flow, increased nitrates, manual removal, it kept coming back...
     
  16. viktorlantos

    viktorlantos Aspiring Aquascaper

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    BGA > remove as much as you can, increase flow in those "dead" areas. if you do not have enough powerful filter just throw in a circulation pump like Koralia. Dosing ADA Phyton Git help to kill this and prevent it.
     

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