What is this purple thing?

[mihkey]

So my clownfish favor this corner, especially at night they seem like they sleep in it..I was looking today and have seen this purple/pink toned thing and I’m unsure what it is or where it came from? It doesn’t move at all, and I’ve never seen it before.(the mirror is the bottom of the tank, they made a huge hole in the sand). These clownfish have been together almost a week now, they were not bonded before but since getting them they have not left each others side and the bigger one seems to lay on the little one at night.

 

[vetteguy53081]

So my clownfish favor this corner, especially at night they seem like they sleep in it..I was looking today and have seen this purple/pink toned thing and I’m unsure what it is or where it came from? It doesn’t move at all, and I’ve never seen it before.(the mirror is the bottom of the tank, they made a huge hole in the sand). These clownfish have been together almost a week now, they were not bonded before but since getting them they have not left each others side and the bigger one seems to lay on the little one at night.

Pic is confusing but may be coralline or cyano .

 

[mihkey]

Pic is confusing but may be coralline or cyano .

I know I’m sorry, I tried getting the best angles I could because it is so hard to see it