Weird root looking stuff on glass

[Keri P]

Hi everyone, does anyone know what this is growing on the glass? It looks like roots, but there isn’t anything that would have roots. It’s a 5 gallon tank, about 4 months old. There is 1 neon dottyback in there with dragonsbreath macroalgae and 3 mushroom corals. I use RODI water, this popped up overnight, what the heck is it?

 

[tbrown]

Labyrinthula. Trying to link you to a thread that @ISpeakForTheSeas responded but my webpage isn't cooperating...

 

[tbrown]

https://www.reef2reef.com/threads/aliens-going-towards-the-light.954877/post-10877082

 

[Keri P]

Labyrinthula. Trying to link you to a thread that @ISpeakForTheSeas responded but my webpage isn't cooperating...

Thank you, I think that’s it. Super weird, don’t really understand what it is lol. Todays cleaning day so hopefully I’ll get rid of it. Maybe it came off the macroalgae