Do you know what this is?

[Purplefishrock]

3 month old tank. 5 Cerith snails added 7 days ago for diatom blooms. This is attached to one rock. Is it a pest or a friend. No fish in tank.

 

[Struggler]

3 month old tank. 5 Cerith snails added 7 days ago for diatom blooms. This is attached to one rock. Is it a pest or a friend. No fish in tank.

Looks like maybe a scallop? Can you get a better pic?

 

[Crabs McJones]

3 month old tank. 5 Cerith snails added 7 days ago for diatom blooms. This is attached to one rock. Is it a pest or a friend. No fish in tank.

Welcome to R2R!!

going with bivalve after seeing new pictures

 

[cloak]

It's just a harmless Bivalve of some sort.

https://www.lionfishlair.com/hitchhikers-guide/

 

[Purplefishrock]

Welcome to R2R!!

I just saw this in another thread a couple days ago. I believe it's a snail egg. @KJ will know :)

Looks like maybe a scallop? Can you get a better pic?

Is this better?

Welcome to R2R!!

I just saw this in another thread a couple days ago. I believe it's a snail egg. @KJ will know :)

th

It's just a harmless Bivalve of some sort.

https://www.lionfishlair.com/hitchhikers-guide/

 

[DSC reef]

Welcome to R2R. Looks like a bivalve, good hitchhiker.

 

[Purplefishrock]

Thank you for the welcome.!

 

[KJ]

Agree with all above.
And Welcome to R2R;)

 

[Night Reefer]

3 month old tank. 5 Cerith snails added 7 days ago for diatom blooms. This is attached to one rock. Is it a pest or a friend. No fish in tank.

Looks like a scallop

 

[Lovemyreef2015]

Welcome to R2R. Bivalves are harmless cool hitchhiker

 

[dbl]

Welcome to R2R and your new reefing community. I believe you have your answer!

 

[Purplefishrock]

I do indeed! Thank you for the help and the support.

 

[Jose Mayo]

This is an Atlantic Ribbed Mussel (Geukensia demissa), do not be surprised if it changes places; they can move slowly with their muscular "foot", although they can also fix themselves on the rocks with their byssus.

They are filter feeders and good consumers of phosphate and nitrate.

Regards

 

[Purplefishrock]

Excellent! With the new tank any help with keeping phosphates down is good for me! I recently added chemipure elite, what a difference it has made. Diatom bloom looks like it is over. The snails and my new hitchhiker friend, I will name Shelly, are doing their jobs. Now, on the look out for the next uprising in the tank...(you know I’m new...I have nothing else to look at, observe:)