Help!

699 Views 2 Replies 3 Participants Last post by sfshrimp, Feb 11, 2017

Discussion Starter · Feb 10, 2017

Anyone know what's growing on my white rocks?

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Looks like diatoms

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Reactions: 1

Joshuabh said:
Anyone know what's growing on my white rocks?

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Looks like cake frosting. Nothing to worry about.

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