<a href=showthread.php?s=&postid=12286286#post12286286 target=_blank>Originally posted</a> by Untamed12
I added a female blue throat to my tank in hopes of changing the male's behaviour and giving him some company. On a good day, they ignored each other. On a bad day, the male chased her around the tank at violent speeds breaking coral as they went. (I would come home to see giant scars on the sides of the two of them and broken pieces of SPS).
In the end, I had the get rid of the male because he became "sterotypy"...repetitive pacing (swimming) behaviour back and forth across the front of the tank. The pattern was so consistent that he began to wear away the acrylic of the tank with his skin! He would only stop this swimming pattern to eat, then he would resume.
In case you are wondering...my tank is 400 gallons, and the blue throats were/are about 6". I still have the female, but she is showing the same kind of behaviour.
My conclusion is that when they reach adulthood, they seem unsuitable for captivity in anything but an exceptionally large tank.