Suggest a reef fish to add to my 75g

[ambergris caye]

Water is too clean for my sps. Need more fish poop!
Need a fish that can hold its own but not be aggessive towards others.
Current reef inhabitants:
4" Hippo tang (peaceful)
3" yellow tang (has been peaceful)
2" cinnamon clown with RBTA (sometimes chases new fish and nips them if they don't hold their own)- this is the one I'm most concerned about!
2" six line wrasse (mine is very peaceful)
2" blood shrimp
want to keep my mini stars, snails alive.

This tank is loaded with coral, has a sump and refugium, gfo/carbon.

I'd like a fish that is colorful, interesting and doesn't just hide all the time. There are lots of hiding spots, but less than average live rock in the main display. No possible coral nippers.

 

[Moonstream]

if your feeling adventurous, what about a hawk of some sort? flame, longnose or falco would be my choice. if your not willing to risk the shrimp, then maybe a larger blenny species like a starry.

an orangestripe prawn goby and tiger pistol would be a good bottom dweller. I doubt the clown would bother them, since they're bottom dwellers.

perhaps you could chance once of the more peaceful haliochoeres spp wrasses, though I dont know how well they would do with the clown's and sixline's aggression.

or maybe some less aggressive damsels like azure or yellowtails.

 

[Monkeyfish]

Midas blennie, square box anthias (male), scott's fairy wrasse, longnose hawkfish, fiji damsel...

 

[ambergris caye]

Some I haven't thought of really. I'll do some reading.
I like the idea of a fish that has some other purpose. For example, the six line wrasse has nice color, is interesting to watch, but also keeps certain pests in check. The yellow tang is great at getting algae in crevasses. The clown attacks my hands. A bottom cleaner is about the best I can hope for so far.