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Black layer on top of sand

Discussion in 'Help and Advice' started by Desertgoast, Feb 20, 2013.

  1. Desertgoast

    Desertgoast Registered

    Jul 18, 2012
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    Hi have had for the last few days a black layer on my sand. Is this just a diotom mat or something else? how is this caused and what are the solutions to get rid......(my tank is about 8-10 weeks mature - if that also helps)
  2. sjspicer

    sjspicer Registered

    Sep 17, 2012
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    Its pretty common, I think its just a collection of "gunk"- algae, bits of rock and dirt.

    A sand sifting creature will help- I use a few pink lipped conches.

    Chalk gobies are also good, but can struggle to get enough food.

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