kiss me upside down, i have had 1 of my glofish for approx. 6 months, and he is still healthy. however, 2 others have died and one i have now has a bent tail or something? i dont know. i agree with you they dont last long but they are quite the site!
oh and the glofish will settle in soon enough, no need to worry. however, if their behavior continues much longer, you might have to buy a different tank for the glofish.