ID Something on rock

[coachholt7]

Anyone able to ID? Appear to me to be brown hollowed tubes.

Aquarium setup 3 weeks ago. Upgraded from a 40 breeder that was cycled to this 90g
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[j_b_]

Looks like some type of sponge to me

 

[ringo®]

Vermetid snails maybe?

 

[jbadd99]

ringo[emoji768 wrote: ;1042988]vermetid snails maybe?

+1

 

[jennm]

Looks like the old shells/tubes of vermatid snails. Do you see anything ever come out of them? It would look sort of like a long spider web, if they are still alive.

They are harmless, they catch food on the 'web'. The shells are sharp - be careful when handling the rocks, those sharp shells will slice your fingers.

They're otherwise no threat, in numbers the 'webs' can be a bit unsightly but they do no harm.

Jenn

 

[coachholt7]

Thanks. They do appear to be old. Nothing is coming out of them. Possibly just on the rock before

Thank yall