Please Help : Is this diatoms????

Discussion in 'Nuisance Algae' started by Express Reef, 25 May 2012.

  1. Express Reef

    Express Reef

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    Good Day All,

    Please assist me, my tank is covered in brown k@k and I dont get this to clear up. It started 4 weeks ago... I did no changes to my tank... Tank is 7mths old...

    I did a 75L water change 3 weeks ago followed by a 55L(2 x 55L = 110L) water change for the previous 2 weeks and is currently mixing 75L again.:(

    Water Parm.
    pH 8.4
    kH 7.7 - low
    Cal 480
    Mag 1350
    No2 - zero
    No3 - zero
    phosphates - zero
    [​IMG]




    [​IMG]




    [​IMG]

    [​IMG]
     
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  3. gMAN

    gMAN with the plan

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    Tagging, I got the same k@k on rocks and substrate!
     
  4. Express Reef

    Express Reef Thread Starter

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    Last edited by a moderator: 26 Nov 2015
  5. Express Reef

    Express Reef Thread Starter

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  6. Lord_Blackadder

    Lord_Blackadder

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    Start praying that it's not dinoflagellates.
     
  7. Express Reef

    Express Reef Thread Starter

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    :eek: Whats that?
     
  8. pXius

    pXius

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    Diatoms feed of silicates as well. Are you feeding micro plankton / marine snow or any other similar product?
     
  9. gMAN

    gMAN with the plan

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  10. gMAN

    gMAN with the plan

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    Hmmmm.... I feed Cylcops and reef pearls every second day, could this be a contributing factor?

    Apologies for jacking your thread Express..
     
  11. pXius

    pXius

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    I bought a bottle of

    [​IMG]

    and was warned by a sponsor that I might get some diatoms dosing the product, especially if its a newish tank.

    I however also had play-sand (apparently silicate free) as substrate at the time and have read many times that diatoms feed off silicates. I got a bit of a bloom which lasted about a month, but went away with normal husbandry.
     
  12. Express Reef

    Express Reef Thread Starter

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    yes, Brightwell zooplanktos-M and ReefPearls
     
  13. Express Reef

    Express Reef Thread Starter

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    Me 2, think this is the problem?
     
  14. Henkie

    Henkie

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    I have the same brownish growths in my tanks, and my mushrooms are busy fading and "melting" away!

    What can I do?:eek:
     
  15. Express Reef

    Express Reef Thread Starter

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  16. RiaanP

    RiaanP Moderator

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    Did you maintained your water change schedule, or dis you start 3 weeks ago with big changes, trying to combat this?

    Seems you are overfeeding, although your parameters looks good. Remember, the bacteria uses up whatever is available. That is why you could have good parameters. Only good husbandry over time, would bring the food levels down and by that reduce the ugly bacteria population. If you are running a DSB, its time to get a cup of sand from a fellow reefer with a established DSB and disease free system. You need other bacteria to out compete these.

    As long as it is not forming bubbles inside the brown stuff, then that at least is an indication that it is not cayno.
     
  17. Express Reef

    Express Reef Thread Starter

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    @RiaanP, my normal water changes is 75L every second week, but I skiped one week then this started...
    No ther is no bubbles
     
    Last edited by a moderator: 26 Nov 2015
  18. Express Reef

    Express Reef Thread Starter

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    @RiaanP, so what is this brown stuff Riaan?
     
    Last edited by a moderator: 26 Nov 2015
  19. Nemos Janitor

    Nemos Janitor

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    Diatoms, Cyanobacteria and slime algae are normally brought on by a increase in CO2 and lack of DO. This could be from increased CO2 in the atmosphere due to one closing off ventilation to retain heat within the house. This lack of Oxygen kills of the normal predators causing bacterial die of causing greater demand on Oxygen and the cycle escalates.

    Causes are ...
    Lack of oxygen
    High CO2.
    Changes in lighting Photo period or spectrum, because dinoflagellates are in an essence zooxanthellae, and photosynthesis consumes O2
    High nutrients
    High PO4

    I would look for the culprit amongst these. But a short term remedy is a 3 day blackout syphoning off as much slime algae or diatoms as you can.
     
  20. Express Reef

    Express Reef Thread Starter

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    Will a 3day blackout not harm my corals?
     
  21. Nemos Janitor

    Nemos Janitor

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    No just watch your pH
     
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