What is that!! A R2R guide to common new tank hitchhikers.

[Lovemyreef2015]

There isn't a shell

If it is a Bursatella leachii (ragged sea hare) then they will have a specific diet and probably won't last long in a aquarium.

 

[Jayh86]

Anyone know if this is standard bristle worm. Looks it to me but the end is pink,,, why??

 

[Crabs McJones]

Anyone know if this is standard bristle worm. Looks it to me but the end is pink,,, why??

Yup. Regular bristleworm

 

[Brice Wagner]

so 15 months in and my tanks getting very "healthy"(lots of little living things).

Ive noticed 2 weird things develops on the snails. I'm more concerned about the white worm things. They just look like parasites to me. The other is either an orange sponge or algea.

Bonus: is that a small oyster on the snails shell?

What do we think? Should I take the snails out?

 

[Lovemyreef2015]

so 15 months in and my tanks getting very "healthy"(lots of little living things).

Ive noticed 2 weird things develops on the snails. I'm more concerned about the white worm things. They just look like parasites to me. The other is either an orange sponge or algea.

Bonus: is that a small oyster on the snails shell?

What do we think? Should I take the snails out?

The white worms look like spionid worms. Harmless. As for the thing on the snail shell, I need a picture with white lights on to see it better

 

[nikluhs]

Pseudocorynactis?

apologies for the obnoxious red circle

 

[KJ]

Pseudocorynactis?

apologies for the obnoxious red circle

Welcome to R2R!!!
Hard to tel from the pic! Turning on white light my make it easier to ID.

 

[nikluhs]

Welcome to R2R!!!
Hard to tel from the pic! Turning on white light my make it easier to ID.

Thank you!
Here's another shot.

 

[KJ]

Thank you!
Here's another shot.

Look like Pseudocorynactis.

 

[Beth Villmow]

The mother in law

 

[Beth Villmow]

Oops

 

[MombasaLionfish]

Oops

?

 

[KJones90s]

Can anyone help identify?
Not sure what it is or was, dead now.

 

[Joshua2598]

Can anyone help identify?
Not sure what it is or was, dead now.

Looks like the molt of a blue legged hermit crab

 

[KJones90s]

Looks like the molt of a blue legged hermit crab

Thanks, at first I thought one of my crabs had died until I counted them all. [emoji23]

 

[MombasaLionfish]

Looks like the molt of a blue legged hermit crab

Yep

 

[Jayh86]

Stimatella snail? Can flying out of a new Zoa colony! Should I put back in the tank??

 

[KJ]

Stimatella snail?

YES.

 

[Jayh86]

YES.

Thank you. Sorry for the terrible auto correct on post. Back in tank now

 

[Brice Wagner]

Are these new zoas or something more sinister? Seems more invasive ever day and that would be a lot of zoa growth all at once.