Double team aggression on new tang

[LAX Noob Reef]

So I have a Powder blue / Mealure wrasse that is current double teaming ganging on new clown. I understand the powder blue might be aggresive against other tang, but why the wrasse? Is it because it look like another wrasse?

 

[nereefpat]

Tank size?

 

[LAX Noob Reef]

Tank size?

120G