I think you made the right decision not to QT. Not whatsoever influenced by the profound failure of my last QT attempt but because I think you nailed it, jawfish just won't do well in a typical QT setup. Not unless the QT was setup exactly like your jawfish biome anyhow. 
 
You do have a cover right? They will be incredibly apt to jump. I found that as they get comfortable in their new home this gets considerably better but you can't prevent the odd sort of random startling so IMO it's better to have a setup where if they do jump, all that can happen is that they fall back in. 
		
	
		
		
		
		
			
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				 -- Tony 
 My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills.  Whee! 
 
			 
		
		
		
		
	
		
		
	
	
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