Some things on my cerith snails

[Tathamet]

Hi,

so I’ve had these black dots embedded in my ceriths shells that seem to send out a mucus thread like a vermetid does but i don’t see a tube like vermetids are usually in. It also seems like they have some sort of hard cover that they can move bit. It’s hard to tell because they’re so small. Just kinda curious as to what they could possibly be. This is the best photo I could take of them in the few months that I’ve had them.

I also have these tiny hairy hydroid looking things that just exploded all over one of my other ceriths. Can anyone confirm if they are in fact hydroids? They don’t seem to react to touching them or anything like I’m used to seeing. They just wave back and forth like algae. I do have medusas and the snowflake stage in my tank so I’m not surprised if that is what they are.

Let me know what you think.
Thanks
Al

 

[jsker]

@KJ please

 

[Kazumi]

following along to see what those are

 

[NashobaTek]

Either a hairy snail or hydroids

 

[KJ]

Hydroids.

 

[Tathamet]

Thanks! Any idea on the first image?

 

[KJ]

Thanks! Any idea on the first image?

Look like vermetid snail.

 

[samnaz]

Yes, hydroids and vermetid snails. Curious where these ceriths are from? I’ve never had a snail come with so many pesty hitchhikers.

 

[Tathamet]

Do vermetids have a shell that can close over them? Because on one of them it looked like the whole side of it shifted over or closed somewhat like a bivalve when it got scared. I thought they were vermetids at first but they just seem a bit different to what I’m used to seeing.

Yes, hydroids and vermetid snails. Curious where these ceriths are from? I’ve never had a snail come with so many pesty hitchhikers.

it’s only the one hitchhiker on the ceriths from the store. The hydroids came later from my tank I’m betting. Had a bloom of hydroid jellies recently. It’s weird how they’re only really all over the one cerith though.

also I’m in Canada so I don’t know that I have that many options as it is for reefing haha.