Growth ID

[fishdude]

I've got this new growth in a few areas of the tank. They are circular white dots the size of a pencil eraser. The tank is well established 5+ years and I've never seen this before. I've seen it on rock and epoxy but never glass. They almost glow under blue light. Any ideas?
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[fishdude]

Here are pics with different lighting.
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[shanepike]

Are they growing on a coral in that last one?

 

[fishdude]

No, they only seem to grow on rock and epoxy. The pink stuff in the picture is epoxy.

 

[shanepike]

It's hard to tell for sure from the pictures, but I have a rock with tons of little sponges that look very</em> much like that.

 

[picoreefguy]

its snail eggs i believe from nerite snails. i get them all over my tank even on the glass and silicone. they're completely harmless and even beneficial if they're fertilized and they hatch.

 

[fishdude]

Picoreefguy;879255 wrote: its snail eggs i believe from nerite snails. i get them all over my tank even on the glass and silicone. they're completely harmless and even beneficial if they're fertilized and they hatch.

I think you nailed it. Thanks Pico!

 

[shac]

they are snail eggs, I have a ton of them growing all over my tank

 

[picoreefguy]

Fishdude;879307 wrote: I think you nailed it. Thanks Pico!

happy to help :thumbs: