Oily Water?

  1. NeonTetra11

    NeonTetra11 Member Member

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    Top of water has this oily look to it. The fish and plants seem to be doing fine so i dont think its affecting it. I've done water changes but it comes back. Anyone know what it is?
     

  2. swordtail123

    swordtail123 Member Member

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    I have this to, I think it is just a natural build up of dirt and bacteria or something, is your water still most of the time ? I use an air stone and I have a surface skimmer which prevents it from building up.
     

  3. FinFanatic

    FinFanatic Member Member

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    Its a Protein Film. Try agitating the surface using a pump or an airstone.
     
  4. toolman

    toolman Well Known Member Member

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    What substrate do you both have, black diamond blasting media has been known to occasionally leach oily film back into water?
     
  5. BeanFish

    BeanFish Well Known Member Member

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    It is caused by food oils and proteins most of the time. Surface agitation should get rid of it.
     
  6. toolman

    toolman Well Known Member Member

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    BeanFish you are probably right, but a friend just had to gut her tank to change it out. That's why I posted why I did, she has mystery snails and red cherry shrimp that were dying. She couldn't get the oil film to go away, after a little of research she found several more cases of extremely oily batches of media. Hers was oily with a rainbow sheen, like an o slick. Glad most people get along with it better.
     

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