Tree?

[KQuillan]

I'm not sure where this post should have gone. I just saw this in the back corner of my tank. It's flat against the back and crawling up the corner.

What is it?

 

[ISpeakForTheSeas]

See my post in the thread linked below:

What is this? Craziest thing I’ve ever seen!

Ok so one hour ago there was no sign of this and now look what’s on the glass! Its made up of thousands of worms and they grouping together like something out a sci-fi show! Moving about it’s super creepy! It’s my Frogfish tank, and he’s absolutely fine as are the corals.

www.reef2reef.com

 

[Slocke]

I'm not sure where this post should have gone. I just saw this in the back corner of my tank. It's flat against the back and crawling up the corner.

What is it?

I know it isn't but it looks like an underwater slime mold.

 

[JGT]

A spaghetti worm if it moves, sponge if it doesn’t or something out of The Last of Us.

 

[Dan_P]

I'm not sure where this post should have gone. I just saw this in the back corner of my tank. It's flat against the back and crawling up the corner.

What is it?

Primitive looking but well organized. @taricha ?

 

[JGT]

Until it crawls into your mouth while you are sleeping and takes over your body.

 

[ISpeakForTheSeas]

Looks like an underwater slime mold?

These things pop up on occasion (as shown in the link in my post) - it seems to be species in the taxonomic class, Labyrinthulea; I need to do more research, but it's either a Labyrinthulid or a Thraustochytrid species.

These were apparently originally thought to be either a slime mold or a fungi of some variety. They are typically either decomposers (harmless/beneficial) or seagrass/algae parasites (not typically harmful for reef tanks; may even be considered beneficial depending on the tank).

 

[JGT]

Interesting. So obviously no active movement. Can that thing keep growing and take over your tank if left unchecked?

 

[taricha]

Primitive looking but well organized. @taricha ?

This is a crazy colony of moving worm things, @ISpeakForTheSeas has the link to previous sightings of this weird stuff.

See my post in the thread linked below:

What is this? Craziest thing I’ve ever seen!

Ok so one hour ago there was no sign of this and now look what’s on the glass! Its made up of thousands of worms and they grouping together like something out a sci-fi show! Moving about it’s super creepy! It’s my Frogfish tank, and he’s absolutely fine as are the corals.

www.reef2reef.com

 

[Slocke]

These things pop up on occasion (as shown in the link in my post) - it seems to be species in the taxonomic class, Labyrinthulea; I need to do more research, but it's either a Labyrinthulid or a Thraustochytrid species.

These were apparently originally thought to be either a slime mold or a fungi of some variety. They are typically either decomposers (harmless/beneficial) or seagrass/algae parasites (not typically harmful for reef tanks; may even be considered beneficial depending on the tank).

Very cool!
Glad I'm not alone to think that it looks like a slime mould. Functionally similar at least.