Adding Fish to a 55gal

[it512]

I have a 55 gal tank.
In the tank I have 1 clown and 1 yellow eye tang, 1 cleaner shrimp, crabs and snails.

Here is a list of some fish I'm looking at.
I will only be getting one of these for now, just trying to figure out which one would be safe to go with.
My BIO has all my tank info.
FYI: I plain on slowing moving to a Reef tank in about year.

Purple Firefish
Blue Gudgeon Dartfish
Tiger Watchman Goby
Hi Fin Red Banded Goby
Yellow Watchman Goby
Do you guys recomend any type of Wrasse

Thanks for anyhelp you can give me.

 

[roka64]

It doesn't appear those gobys will fight. You can also add a pistol shrimp or two. The hi-fin and yellow might form a symbiotic relationship. A couple of those are possibly jumpers so you will need a covering over the tank, like egg crate.
If you are planning on going reef, here are some reef-safe wrasses:
http://www.liveaquaria.com/product/scateg.cfm?pCatId=1378

 

[Finatic]

I like neon gobys. Throw one in and watch him clean your other fish. Funny to watch my coral beauty lay on the rock and have this little guy clean him.

 

[melosu58]

I`m partial to the pink spotted goby. Here is one

Good Luck in your choice

 

[nycpassat]

How about Blennys? Nice addition as well