Invertebrate/CUC ideas

[Cthulukelele]

So I'm starting a 120 gallon aquarium and was wondering what some interesting invertebrates that would be compatible with my tank. My fish list includes:
Bonded pair ocellaris clowns
Bonded pair bangai cardinals
Melanarus Wrasse
Yellow watchman goby
Lawnmower blenny
3x blue green chromis
Purple firefish


I was going to try to put in about 120lbs of live rock and ~2 inches of special grade aragonite sand. Any invert/CUC suggestions or changes to rock amount/substrate choice?

 

[Katrina71]

Are you getting a pistol shrimp for your watchman?

 

[Cthulukelele]

I am hoping to yes! Hadn't decided which color variety yet though

 

[Katrina71]

My son has a tiger pistol and it is awesome!

 

[Cthulukelele]

It's definitely between that one and the Randall's pistol shrimp! Does your son have any other inverts that you really like?

 

[DudeBruh]

Following to see suggestions for the 120 i started. It is Def a great size!