Weird Growth

Hi everyone,

I was wondering if anyone knows what this might be. Its been growing on my filter for the past month or so, but thought it was harmless so I didnt bother it.

Thanks in advance!

 

Could be a tunicate colony, but I am not really sure. Whatever it is, it sure looks cool

 

Ya I'd say Tunicate or a sponge. It's a good sign that the tank is doing well.

J

 

Cool looking whatever it is.

 

I'd probably say its a sponge

 

that thing is for sure crazy looking.

 

i love it, i just dont understand how things like these spring out of nowhere lol, but many thanks for all of your replies!

 

Looks to me like a encrusting bryozoan colony or tunicates.