For such tangs,tunerX;1267879; said:The achilles tang is awesome. My wife wouldn't let me pick one up for fear of it kicking the snot out of the powder brown tang. I told her we could trade in the powder brown but she wasn't having any of it.
If you do want to mix them its better to mix aggressive ones with others of different body shape.
A Sohal can be mixed with PBT type and YT type body tangs. Achilles can be mixed with Clown type and YT type body tangs etc...
can't guarantee a peaceful comm, but chances of fighting are reduced a great deal. Remember that colors should be different as well. Don't mix an achilles with a black... you may have a dead tang soon.