choose my last fish!

[Neptune 555]

I have a 180 reef and want to finish my stocking list. I QT and do TTM for all new fish. I had a bella goby arrive yesterday from LA. I can purchase a final fish for my tank today.... as I will call today day 1 for TTM. What fish would be a great final addition to my reef system with minimum aggression?

1 blue tang
1 yellow tang
1 bicolor fox face
1 vlorik wrasse
6 blue chromis
1 flame angel
1 flameback angel
1 starry blenny
1 fire shrimp
2 cleaner shrimp
2 green crabs
1 sand sifting star fish
1 cucumber
2 clowns
20+ BTA (I am reducing these down to 1 - 3 BTA)
mushrooms
HUGE leather coral
sea fan
1 bella goby (in 20 gallon QT arrived yesterday)
1 watchman goby (Can a bella goby and a watchman goby do a QT together in a 20 gallon tank?)

Any other additions to the reef you would recommend or do I have enough fish?
* Majenta dottyback?
* Another wrasse?
* I will add a mandarin goby AFTER my pop population explodes.

Other suggestions?

SINCE TTM is such a PITA I am either going to add them to this QT or not at all

 

[A Young Reefer]

Some sort of flasher wrasse
the pintail maybe ?

 

[SlugSnorter]

goby and pistol

 

[Fish&coral72g]

ummm tangs???+ i gues or a goby like the person says on the top

 

[Fish&coral72g]

maybe a coral