What is this?

[aaronalam]

Thanks for the info, I'll have a look into it.

 

[aaronalam]

So, it's been a while, they are still there and doing what they do (nothing.)

Here is a new picture incase anyone has anymore input on them, they are a few months old now, never been target fed etc..

 

[mr_X]

they look like palythoa to me.