weird white branchy lines

[Voypok]

Hi Guys, I just a few months in the hobby and have a long way to learn... my question today is: what has weird white branchy lines appeared on the back wall and heaters. I tried to research it online, but no luck... Might be somebody seen it? Not the best pictures but it is tiny...

 

[reef lover]

Looks like sponge.

 

[Voypok]

Thank you
is it the name of this sponge? will try to find to read about it.

 

[GeoSquid]

Kinda looks like a tube worm. Are there little feather duster looking things coming out of the end? I think I see one in the picture.

 

[Fishy212]

Looks like tube worm of some kind.. extra long spirorbid worms?

Closer pic would help

 

[Voypok]

Will try to do a closer picture tonight

 

[Voypok]

I think you guys right about worms, I cannot see it (probably need glasses), but the picture tells it.....

 

[Redfoxtang]

From that picture definitely looks like tube worms/feather dusters. Harmless of course.

 

[Voypok]

Thank you

 

[reef lover]

Yup I agree.

 

[BlazinNano]

If they look tube worms. Sounds weird but do they look like sand particles all stuck together?

 

[MelReefer]

+1 on the worms. I believe they are feather dusters

 

[Voypok]

Tiny dusters though.... lines like 1mm or 1/32”+ thick