What is this?

[just o]

Can anyone tell me what this is? I found in growing in my Refugim on my micro algae. At first I thought it was an abnormal growth but then noticed if was some type of egg sack

 

[vetteguy53081]

It is foraminifera algae attached to what looks like bubble algae

 

[just o]

It is foraminifera algae attached to what looks like bubble algae

Is this good or bad for my tank? When I squeezed one it had a worm like thing inside

 

[WheatToast]

Is this good or bad for my tank? When I squeezed one it had a worm like thing inside

It's a little difficult to tell from the images above. Do you have clearer images? What did the "worm" look like? Oh, and the red object is just red macroalgae, right?

 

[ISpeakForTheSeas]

Is this good or bad for my tank? When I squeezed one it had a worm like thing inside

+1 to WheatToast’s comment. My first impression is that it’s a tunicate and the worm thing inside is either the notochord (spine) or some kind of organ, but more information would likely be needed to verify/disprove that.

 

[Tired]

Put it back in water and see if it changes shape. Don't squeeze it- if it's a tunicate, we don't want to hurt it. They're harmless, and one that's growing in your tank could be neat to have.

 

[WheatToast]

+1 to WheatToast’s comment. My first impression is that it’s a tunicate and the worm thing inside is either the notochord (spine) or some kind of organ, but more information would likely be needed to verify/disprove that.

Similar-looking, translucent tunicates for reference:

 

[vetteguy53081]

Similar-looking, translucent tunicates for reference:

Better pic- filter feeding tunicate

 

[just o]

Put it back in water and see if it changes shape. Don't squeeze it- if it's a tunicate, we don't want to hurt it. They're harmless, and one that's growing in your tank could be neat to have.

I see… the sacs are hard and squishy like a boba bead. Not sure if that help narrow it down. Should I move it to my quarantine tank or leave it in the refugim?

 

[just o]

Better pic- filter feeding tunicate

That second picture looks pretty close to it

 

[ISpeakForTheSeas]

If it’s a tunicate, then it’s harmless, so I’d leave it in the refugium personally.
Another tunicate photo to help decide:

Photo from here:

Fish in the Bay – 2 December UC Davis Trawl – Part 3: The Bugs

It’s end of year, we just passed through solstice (21 December) and King Tide perihelion is coming on 2 Jan. This is a rare chance to discuss a few things in greater detail. A lot of critters I see on UC Davis trawls end up on the cutting room floor. Bugs often are the losers: December

www.ogfishlab.com

 

[just o]

If it’s a tunicate, then it’s harmless, so I’d leave it in the refugium personally.
Another tunicate photo to help decide:

Photo from here:

Fish in the Bay – 2 December UC Davis Trawl – Part 3: The Bugs

It’s end of year, we just passed through solstice (21 December) and King Tide perihelion is coming on 2 Jan. This is a rare chance to discuss a few things in greater detail. A lot of critters I see on UC Davis trawls end up on the cutting room floor. Bugs often are the losers: December

www.ogfishlab.com

That’s exactly what it looks like.thank you all so much for the information