Raised White spots on glass??

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derek75

Aquarium Advice Apprentice
Joined
Nov 16, 2015
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21
Anyone know what these growths are. Raised to a point, white things on the glass?

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Lights are off but I will get one out here. They come and go. It's strange.

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Not sure if you can zoom on this and tell. Let me know if this is familiar? I'll try and get a better pic in the mean time

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Looks like Tiny while calcareous worms. Harmless


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They seem harmless. Anyone know where they come from? Or where they go when they are no longer on the glass. I'm glad someone knew what these were.

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It took 2 years for them to show then. I only bought 2 small pieces of live rock when I started. And no coral yet. Either way. You guys heed me identify these. And it's just good to know what it is.

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