no, i have not, i think it would be neat, but right now, bengaii and scooter love to see them(as much or more than my other inhabitants), but quite regularly i do see them at night(every time they molt), and it is fun to watch the bengaii, he is so easy to spot too, we have though t about trying to move them to teh Q tank, when it is tiem, jsut to see, but have not gottten to it yet
if i were gonna try, i would wait til they were ready to molt, and have a tank ready, and empty from fish adn such, and move them in there, with minimal circulation, and alot of screen over the pump intakes
good luck and HTH