Got a gift card for the holidays and want a new fish! Ideas?

[flyrfrk33]

As the subject says, I received a nice gift card for the holidays and I am thinking about getting another fish or two for my tank.

A little bit about the tank to help suggestions. I currently have a 29g with a HOB filter with 3 koralia nano powerheads. Stock list

fish
- Banded Goby
- Christmas Wrasse
- Blue Damsel

Corals
- Torch
- Pagoda
- Christmas tree looking leather
- Xenia
- variety of zoos including eagle eye, lunar eclipse frags among a few others
- blue candy cane
- Single headed blasto
- green and brown polyps
- Pink palys
- GSP
- unknown SPS - top of the tank

CUC
- 2 emerald crabs
- 3 hermits
- 3 snails

Attached is a pic -

 

[flyrfrk33]

I am thinking about a mandarin or something similar.

I really want a duncan and a sun polyp