55g - 90g Fish

[Gatorzone19]

Ok I have a 55g Reef with a 2.5" French Angel, 2" Rock Beauty, 2 Occelaris Clownfish, and a Longnose Hawkfish. I am going to be upgrading my tank to either a 90g or 120g in about a year from now. I am wondering if I could put one more fish in my 55g? If so any suggestions.
Filtration is a Large HOB Regium with Protein Skimmer works surprisingly well.

 

[locust]

The French angel is going to be too big for a 90 gallon or a 120 gallon.

 

[IFbettas]

I, personally, wouldn't put any more fish in with those two angels, but if you really want something a small goby or blenny should be fine. Just make sure it is nothing really active that the angels might see as competition.

 

[Gatorzone19]

Once the French gets to big he will be moved to a bigger aquarium. I used to have a sixline wrasse in my other tank, do you think a sixline would work in my tank?