kole eye tang

Contemplating adding a new fish to the mix and would like feedback. Want to add a 3-4” gem tang to the group. Currently I have a 3” clown, 2” orange shoulder, and 2.5” Kole eye tangs. Tank is 112gal 5’ wide tank. Plan on upgrading to a 250gal in a few years. Thoughts?

I have a 120g tank with a Kole eye tang that’s about 3”. I have one small trigger fish and plan to upgrade to ~250g in a few years. Want to know if it’s a bad idea to add a clown tang to the mix. It’s a reef tank with a few corals but it’s mainly rock right now. Thoughts?