What is this tentacle that has emerged from my green star polyp?

[Dave Clark]

 

[TnFishwater98]

Hidden sea cucumber?

 

[TnFishwater98]

Hidden sea cucumber?

Or macro algae … Does it retract?
Doesn’t look like gulf LR, did it come on the frag?

 

[ISpeakForTheSeas]

Filter feeding sea cucumber is my guess too.

 

[Dave Clark]

Or macro algae … Does it retract?
Doesn’t look like gulf LR, did it come on the frag?

Yes, it retracts. I’ve had the polyp for a couple of weeks and this tentacle showed up about a week ago, has been growing ever since.

 

[TnFishwater98]

Yes, it retracts. I’ve had the polyp for a couple of weeks and this tentacle showed up about a week ago, has been growing ever since.

Sea cucumber

 

[TnFishwater98]

 

[Dave Clark]

Sea cucumber

Stupid question time. A GSP on top of a sea cucumber, or the whole thing is a sea cucumber?

 

[ISpeakForTheSeas]

Stupid question time. A GSP on top of a sea cucumber, or the whole thing is a sea cucumber?

GSP on top, not the whole thing.

 

[John Bolden]

Wow thats super cool! wish my gsp came with an awesome freebie like that...

 

[TnFishwater98]

What you circled is part of the sea cucumber. The rest of the sea cucumber is hiding underneath your GSP and above the frag plug… Or it’s in a hole in your GSP.

 

[vetteguy53081]

No doubt GSP on top of a cucumber and a weird combo

 

[Dave Clark]

Wow thats super cool! wish my gsp came with an awesome freebie like that...

So I've Googled and couldn't see any obvious articles that talked about what's going on here. Do polyps and sea cucumbers have some kind of symbiotic or other kind of relationship? Or is the polyp just being a pest?

 

[ISpeakForTheSeas]

So I've Googled and couldn't see any obvious articles that talked about what's going on here. Do polyps and sea cucumbers have some kind of symbiotic or other kind of relationship? Or is the polyp just being a pest?

Some sea cucmbers like to pick spots (typically in rocks) to park and eat - in this case, the cuke just so happened to pick a spot in/under your GSP frag there. So, no actual relationship between them, the cuke just happened to end up in the GSP.

 

[Dave Clark]

Some sea cucmbers like to pick spots (typically in rocks) to park and eat - in this case, the cuke just so happened to pick a spot in/under your GSP frag there. So, no actual relationship between them, the cuke just happened to end up in the GSP.

Really interesting. I love this hobby. Thanks.

 

[TnFishwater98]

Just like if you bought a GSP but a big fireworm poked its head out….

 

[TnFishwater98]

So you got a good hitchhiker

 

[Dave Clark]

Just like if you bought a GSP but a big bristleworm poked its head out….

It's my first reef tank and my first GSP ... I'm learning! Thanks.

 

[Dave Clark]

So you got a good hitchhiker

Yeah, and on my live rock there were two clams and a gorgonian coral, all doing well ... pretty cool stuff ...

 

[Rick's Reviews]

So I've Googled and couldn't see any obvious articles that talked about what's going on here. Do polyps and sea cucumbers have some kind of symbiotic or other kind of relationship? Or is the polyp just being a pest?

Yes that's the difference between Google and real ppl who have experience in this, Mr Google, bates/ musk or any other can't not help you.
Reef2reef members are here though