Green bumpy mushroom identification

[Miami Reef]

I bought this green mushroom a year ago. It’s on the bottom of the tank.

What’s it called, and is it supposed to spread? Because it hasn’t at all, and I would prefer if it did.

 

[Hemmdog]

Looks like a normal discosoma. It seems happy. They should multiply, it looks like it’s splitting. If you bought it as a single mushroom I see more than one mouth now.

 

[Miami Reef]

Ok. Trick question. What mushroom is this? It’s in my tank and it’s purple (sometimes green) in color and it spreads more prolifically.

 

[Hemmdog]

Ok. Trick question. What mushroom is this? It’s in my tank and it’s purple (sometimes green) in color and it spreads more prolifically.

Looks like a somewhat mad ricordia yuma.

 

[Miami Reef]

Mad? It looks unhappy?

I have it high in the tank. Maybe I should bring it lower.