What is the crown jewel of your tank?

[Rocky Mountain Reef]

I have many, but at this point, having my Achilles Tang....he/she is the holy grail to me and has been since I started keeping marine fish....8" and a real show piece

 

[Alexraptor]

My 20 euro efflo. When I bought it last year it was light brown

 

[Kylesreeftank]

The crown Jewel of my tank are the amphipods.