What is this??

[Waters]

Anybody have any idea what this is on the glass? Showed up overnight.......have two total. They are both over 7" long. Been doing this a long time and I am still posting "what is
this" threads lol.

 

[Zach B]

Definitely weird, following to see what it may be

 

[Tahoe61]

I am inclined to say a large Spaghetti Worm.

 

[Zach B]

I am inclined to say a large Spaghetti Worm.

My thoughts initially, just never seen one like that lol

 

[kevgib67]

I agree with @Tahoe61 , looks identical but I’ve never seen one that big in any of my tanks.

 

[Reefering1]

Does it move?

 

[elysics]

Not a spaghetti worm. It's a colony of slime mold or other single celled organisms, If you look very closely, you'll see that it's a writhing mass of individual moving strands. I've had it too a couple times, vanishes on its own and is harmless as far as I can tell

They hide in the sand at night and then grow like a tree towards the light during the day

 

[Waters]

So it appears @elysics is correct. I was able to wipe it off like algae.......very strange. Definately doesn't need light to grow since it appeared overnight.

 

[Waters]

Does it move?

No, didn't move but did grow extremely fast lol.

 

[Tahoe61]

The Last of Us, right.

 

[SquidwardTentacles05]

Anybody have any idea what this is on the glass? Showed up overnight.......have two total. They are both over 7" long. Been doing this a long time and I am still posting "what is
this" threads lol.

Green hair algae