What is this?

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Alex2002

Alex2002

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Hello,

I need some help. What could this be on my coral sand? Is it harmful to the aquarium or can it be left in?
IMG_20240402_142207.jpg
 
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Saltwater Aquarium

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Tidal Gardens

HOW DO YOU ADJUST YOUR CUC AS ALGAE DISAPPEARS?

  • Capture and re-home CUC

    Votes: 10 8.3%

  • Increase white light/hours in tank to spur algae growth to feed CUC

    Votes: 8 6.6%

  • Feed nori to support CUC

    Votes: 39 32.2%

  • Feed herbivore pellets to support CUC

    Votes: 43 35.5%

  • Allow attrition to balance CUC and algae

    Votes: 52 43.0%

  • Provide macro algae to feed CUC

    Votes: 8 6.6%

  • Introduce CUC predators

    Votes: 1 0.8%

  • Other (please explain)

    Votes: 12 9.9%
See comments…

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