Baby Mushroom or Octospawn tentacle

[sotsreef]

I found this little green dot looking thing on my sandbed in a low flow area today. It was sitting there before I placed it in a cup with sand at the back of my tank. It’s about the size of a nerd candy, neon green and I can see a spot without green which I assume is the foot, if it’s a mushroom. I have an octopspawn in the tank and a green fuzzy mushroom. Is it one of these? neither?

My green fuzzy mushroom, golf ball size

Octospawn, also golfball size

 

[sotsreef]

Anyone?

 

[KJ]

Hard to tell from the pic.

 

[sotsreef]

I’ll try to get a better pic with my big camera but my lights aren’t on right now.

 

[reef lover]

Im thinking octospawn...