Need help identify a new alien in my tank

[74maddox]

I've had my take set up for about 9 months, no new rock or anything for at least 6 months. About a month or so ago, I found an "alien" on the underside of one of my rocks. It hasn't done anything- no growth, no movement. But, what IS it? I'm attaching 2 pictures in hopes that someone might know what it is. Thank you! View attachment 1406646 View attachment 1406646 View attachment 1406648

 

[Micaeltercer]

Oof!

 

[sp1187]

Oof!

this makes me hesitant to look.
:cool:

 

[ReefReadyYouTube]

Could be a sponge???

 

[sp1187]

ok... let me explain, when I first checked there was no pics, just links, and Mic said "oof" so I thought it was a joke AND it's in DIY not Hitch Hikers.
Sorry.

 

[Arthacker87]

Is it soft or hard to the touch?

 

[jaghorireefs&mma]

That either looks like a very very rare form of aiptasia or a sponge

 

[sp1187]

tunicates?

 

[74maddox]

ok... let me explain, when I first checked there was no pics, just links, and Mic said "oof" so I thought it was a joke AND it's in DIY not Hitch Hikers.
Sorry.

I apologize that it's in diy, I'm new here and learning to navigate.

 

[74maddox]

Is it soft or hard to the touch?

No idea, I haven't touched it, I would assume soft though, it looks "fleshy"

 

[Deep dive coral]

Might be a sponge.

 

[El_Guapo13]

Sponge? Where is @KJ at? He would probably identify it. Possibly down to the scientific name lol

 

[sp1187]

I apologize that it's in diy, I'm new here and learning to navigate.

no worries, just having fun with ya.
might get more replies if you ask there.
:cool:

 

[sp1187]

and welcome to the show
:cool:

 

[vetteguy53081]

Sponge. other possibility is Macro algae but texture points to sponge

 

[74maddox]

tunicates?

I've had my take set up for about 9 months, no new rock or anything for at least 6 months. About a month or so ago, I found an "alien" on the underside of one of my rocks. It hasn't done anything- no growth, no movement. But, what IS it? I'm attaching 2 pictures in hopes that someone might know what it is. Thank you! View attachment 1406646 View attachment 1406646 View attachment 1406648

Also, it's less than 1/4" around...

 

[csb123]

If it’s hard, I think it’s a foraminiferan. Completely benign.

 

[fishguy242]

harmless and welcome to the reef gonna love it here

 

[KJ]

Look like sponge.

 

[TDEcoral]

Looks like foraminifera to me.