Nieces and fish

[Dearth]

Well after I told my nieces that their first choices weren't an option anymore and they can't decide one or the other fish anymore and as per usual kids being kids got into an argument over what to decide on

So I am looking for a wrasse that has bristle worm on their menu need the population controlled plus really don't like the lil buggers either and another fish that will co-exist with the wrasse and likes to swim

Eventually my 95 gallon will be bit full of fish but most will be hiding in the rocks

current fish that will be going in the tank
2 black percula clowns
4 green chromis
1 yellowtail damsel
1 neon goby
2 peppermint shrimp
2 Sea Cucumbers

Wish list
1 lawnmower Blenny
1 wrasse (preferable with bristle worm on the menu)
1 swimmer with colour

I am open to fish suggestions