Id help please

[Reefcare1]

What are the flower looking things that came on my live rock ?
They made it through die off and tank cycle.
Any ideas ?
Friend or foe ?

Thanks

 

[Reefcare1]

1/8" diameter
Some are round , some oblong.
Stationary.

 

[Reefcare1]

Bumpity bump

 

[J_Gard88]

From the picture, could be a fan worm of some sort. If so it's a good thing.

 

[J_Gard88]

Or a sponge, either way, I research everything in my tank and if it occurs over time on its own and not noticeable after introducing something new then its usually a good thing. Filter feeder of some sort...

 

[4tanks]

Better picture would help

 

[Reefcare1]

They don't retract like fan worms.
Cuc don't seem to be bothered by them.
Better pics are difficult
They don't seem to be a problem...yet , I've just never seen anything like this on any "fad" location live rock (4 decades worth).
Kd aquatics rock , 2 months old , Gulf rock ?
Google seems no help here.

 

[Reefcare1]

*KP aquatics

 

[Reefcare1]

Ok... check out pic #1 vs pic #3.
Pics are 2 days apart.
They are moving !
Slowly.
And leaving a trail of seeds ?
Pic #1 and #3 are shot on same part of rock.
Notice the movement by using white section of rock as landmark.

 

[TnFishwater98]

Lettuce slug?

 

[TnFishwater98]

 

[TnFishwater98]

That or have you ever seen the movie Gremlins..... Nevermind

 

[TnFishwater98]

Lettuce slug?

Are they lettuce slugs?

 

[Reefcare1]

I don't think so.
They seem like a stationary critter , but after reviewing pics a few days apart , the are migrating very slowly.
(And leaving what looks like a seed trail as they go)
About 1/16" a day ?

I'm thinking gremlins also , lol

 

[Goaway]

Colonial tunicates.

Usually harmless, unless growing on a coral. Just enjoy them

 

[Rtaylor]

Maybe a tropical variation of this?

Golden Star Tunicate (Botryllus schlosseri) | Live Colonial Marine Specimen | Gulf Of Maine, Inc.

Order Golden Star Tunicate (Botryllus schlosseri) from Maine. A colonial ascidian specimen ideal for aquariums, classrooms, and marine biology labs.

gulfofme.com

 

[Reefcare1]

Yes , with enough clicking through "colonial tunicates" photos , I think it may be this :

BRYOZOA, star tunicate Botryllus schlosseri is a colonial ascidian tunicate.

Thanks for playing along !

 

[vetteguy53081]

Ive seen this in tampa bay and looks like sponge with tunicates. Very similar to below: