after years of keeping female panther geckos together in groups of 5, i am seeing agressive behavior from 1 of my girls. this group of 4 have lived together for a year but i recently added a fifth female who does not seem to be involved as she does not interact much. These are the most mellow geckos i have ever seen so i m surprised. The agressive gecko followed one of the girls into the hide after a raised tail stance and mounted the other girl til i took her out to make sure she wasnt a male! Is this harmless jockying for position or am I at risk of some one dropping a tail? I removed her but she does not seem happy living alone