Help with ID: "Yellow Sponge" is a Yellow Sponge?

[GotCrabs]

Good morning.

During my system tear down and reset, I found what I believe is a yellow sponge. It was found in a dark, low flow cave area in my rockscape. I thought it was cool so now have it at the top of my rock pile for all the world to see. I've since read that maybe it's a bad thing....even toxic.

I did some searching on "yellow sponge" and I don't see a picture similar to mine so...

Does anyone recognize this specific sponge or have experience with it?
Are all sponges bad?
Is there a chance I got the lucky sponge that is cool?

I ask because I like the idea of it...and because my rock is old original ocean rock...so maybe I have something unique and not bad? Dare to dream.

Your insights are appreciated. Photo below. (Yes...I have those little starfish...but I kinda like those too...unless someone has insights there as well.)

 

[vetteguy53081]

It is yellow and undesired in reef tank mainly due to toxins
To rid of it, you can pull rock and expose it to air for a few minutes
Other option is to inject it with air, vinegar or boiling water which will destroy its cells
Last option, remove rock and trim it off with a hobby knife and clean off the rest with a toothbrush and flush with tank water and return to the tank

 

[GotCrabs]

Well...I tried. Thanks for the insight.

I'm moving forward with additions to my system now that I have it reset. Should I be concerned about existing toxins? Will they just dissipate? Or is it vital that I use some carbon in a reactor to clean the water? Or other ideas?