What pest is this? Found it on my live rock

[Mike Stone]

Found this stuff on my live rock and also one crawling on my tank wall.

When I try to pull it from my rock using a pincer, it broke into 2 and still alive and try to crawl away.

TOP and bottom view

I

Anyone can advise me what it is?

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[Mike Stone]

A clearer magnified photo.




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[Sherilyn91]

Stomata snail


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[Harlequinmania]

Good stuff no need to worry.. haha

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[Mike Stone]

I killed it....


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[Mike Stone]

Don't like it's look, like a little cockroach ......


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[Mike Stone]

Omg, all along I thought my tank is pest free because I use hot water to soap most of my rocks except couple of pieces I did not do it.
Never did I know I woke up to see near hundreds of small creature crawling on the tank wall this morning . Must be thousands on those rocks....

Need advice are these bad or harmless?

Lesson learn is to really introduce completely dead rocks to my new tank in future.


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[JMW]

Those small white longish bugs? Those look like amphipods, a clearer pic would confirm it.

they are beneficial microfauna btw, in helping to eat detritus & some but of micro-algae. They are a good food source for your fishes too.

[Mike Stone]

Ya, I went to search online and see it looks similar to pods, scare me for a while.


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[Mike Stone]

Found another funny looking stuff in my tank, can anyone tell me if this is a pest?



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[Mike Stone]

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Hair, I am damn suay. Tank just kanna Velvet and 3 fishes died today, trying to save the rest and starts seeing funny creature pops out everyday ...


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[Sherilyn91]

Brittle star


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[Mike Stone]

Supposing it is good....


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[JMW]

Brittle stars are not considered pests as they are beneficial detritus eaters.. Pls do not kill it!