Fluval Evo 13.5G First Aquarium

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Maxctrl88

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today start appearing circle brown dots all over sand and rock should i do something ?
 

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Managing real reef risks: Do you pay attention to the dangers in your tank?

  • I pay a lot of attention to reef risks.

    Votes: 140 43.1%
  • I pay a bit of attention to reef risks.

    Votes: 114 35.1%
  • I pay minimal attention to reef risks.

    Votes: 50 15.4%
  • I pay no attention to reef risks.

    Votes: 16 4.9%
  • Other.

    Votes: 5 1.5%
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