Anyone know what this is?

[Taiyaki.Visuals]

I just picked up a tank for a good deal and it came with some corals but I'm unsure of what this is?

And that mystery golden thing that looks like some sort of meteor shower?

 

[fishguy242]

hi,chalice.? nice..

 

[Taiyaki.Visuals]

hi,chalice.? nice..

Oh that could be it, I thought it was a plate of some sort.