I agree with the others above me. He is getting picked on BAD! If you need to get him out of the tank temporarily i have a 75 gallon that could give him some time to heal. 
 
In the long run he will need more then a 29 as will your other tang. They both required alot of room to move around. Sorry to say but your tank just isnt large enough. 
 
Steve 
		
	
		
		
		
		
		
	
		
			
			
			
			
			
			
			
			
			
				
			
			
		 
		
	
	
	 |