This regalis isn't as aggressive as my ornata. When I stick tongs in the ornata's cage to change the water dish, she goes after them until she realizes they are not food. She even goes after the stream of water when I am pouring it into the dish!
To take the photo of the regalis, I opened the lid and stuck the tongs in the cage to guide her onto the piece of cork which was sticking in the ground in the backyard. She didn't go after the tongs like the ornata would have. However, you can't handle the regalis like you can a G. rosea.