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Old 04-14-2015, 03:20 AM
Noodles Noodles is offline
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Default Starfish ID please

I just noticed a couple weeks ago that I had a "new" starfish, and tonight I found a second one. They're aprox 16-19 mm across. They look a lot like astrea stars but a lot bigger (and they both have 5 arms). They seem to be grazing on the rocks and leaving corals alone so I'm not too worried, just curious what they are


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Old 04-14-2015, 03:24 AM
strider strider is offline
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Default Starfish ID please

What color are the from top?
Grey/white?

I just looked into my tank. They are asterina. I have tons the are on rocks, glass and everywhere else.

They will eat algae and dead matter.
I thought they were eating my Zoa but on close inspection I realized they were cleaning the dead ones and not bothering the healthy polyps.

Last edited by strider; 04-14-2015 at 03:33 AM.
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Old 04-14-2015, 03:29 AM
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Myka Myka is offline
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Asterina sp starfish. I used to think they are harmless (some species of them are), but some are definite coral predators. I consider them all pests and remove any I see.
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Old 04-14-2015, 03:30 AM
Noodles Noodles is offline
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Yes, white with grey marbling.
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