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View Full Version : help id groups ofcflat white round shell like things


herbklee
11/19/2019, 01:50 AM
404410

help!

what are all these white flat shelled organisms? all lined up in the back corner of my tank?

They are about 1-2 mm in diameter and congregate in groups in different areas of my reef tank

mcgyvr
11/19/2019, 05:42 AM
Pic isn't the best but could be snail eggs..
Could be snails/limpets
Could even be sponges

All harmless/beneficial..

See if you can ID them here.. https://www.lionfishlair.com/hitchhikers-guide/
Keep that link for future reference too..

herbklee
11/19/2019, 08:28 AM
thanks i thought limpets harm coral?


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mcgyvr
11/19/2019, 12:11 PM
i thought limpets harm coral?

Nope.. Harmless algae grazers..

herbklee
11/20/2019, 04:08 PM
great !
i thought i read somewhere that they eat coral
I'm glad I'm wrong


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Anemone
11/20/2019, 05:38 PM
thanks i thought limpets harm coral?



Depends upon the limpet. Keyhole limpets are known to munch on SPS. That being said, that doesn't look particularly like that's what you have. It's hard to tell from the picture, but yours look like snail eggs. Do they move?

Kevin