help with Diatoms

Discussion in 'Beginner Discussions' started by dogstar, 28 Dec 2008.

  1. dogstar

    dogstar

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    gents having issues with diatom blooms.

    Tank is almost 3 months old, and i am getting a lot of brown diatoms forming on the dt substrate and on the glass.

    I thought my problem was high phosphate levels, which prompted me to build a phos reactor which has been running for about week now. I bought a salifert phos kit and have tested 0 phosphate today.

    What else can i do to prevent the diatoms forming?
     
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  3. Warr7207

    Warr7207

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    You have introduced something into your tank that has caused a mini cycle which is the cause.

    Probably find your Nitrates are the problem not the PO4
     
  4. dogstar

    dogstar Thread Starter

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    my water parameters:
    kH: 5
    pH: 8.2
    Nitrate: 2 mg/l
    Nitrite: 0
    Temp: 28
    sg: 1.026

    running three T8 lights, 2 white, 1 blue
     
  5. dogstar

    dogstar Thread Starter

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    i added some new fish a few days ago
     
  6. Warr7207

    Warr7207

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    there is the source of your mini cycle.

    how many fish ?

    Volume of your tank ?

    Species of fish added ?

    Test kits used ?
     
  7. dogstar

    dogstar Thread Starter

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    tank volume is about 300 litres.

    Added 3 small blue chromis.

    Tropic marin test kits, except for phos, thats salifert

    The diatoms has been a constant issue since i started, i usually just keep cleaning the glass and siphoning the substrate with every water change. It has never really dissapeared.
     
  8. Shaun

    Shaun Retired Moderator

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  9. scubaninja

    scubaninja

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    3 small blue cromis arent enough to cause a cycle in a 300 liter system. IMO
     
  10. dogstar

    dogstar Thread Starter

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    It is low, but i am sorting that one out. Dosing seachem reefbuilder with my topup water.
     
  11. dogstar

    dogstar Thread Starter

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    and they really tiny, not more then 3cm long
     
  12. sunburst

    sunburst

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    Would this not be considered natural for a juvenile tank.
     
  13. mandarinman

    mandarinman

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    consider reducing temp in tank to 26 deg
     
  14. goodisor

    goodisor

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    Are you using NSW or are you mixing salt?If you are using NSW,where do you get and is it clean.If salt,then what type?
     
  15. goodisor

    goodisor

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    Oops sorry,only just saw your llocation now.......so what salt you using?:p
     
  16. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Spot on Sunburst. My exacts thoughts aswell.
     
  17. viper357

    viper357 Admin MASA Contributor

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    I wouldn't worry about it, quite normal for a new tank to have a diatom bloom or two during the first few months, even after it has finished cycling. Give it time, it will eventually go away.
     
  18. jacquesb

    jacquesb Retired Moderator

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    Dogstar - diatoms live off silicates in the substrate/water...... once all the silicates sources have been depleted, the diatoms will start dissappearing......
    Have you had diatoms before this time?
     
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