I just got my first pet roaches, 11 Turks and 11 hissers. My question is, is it normal for the hissers to just sit around and not do much? They are still young, about 1-1 1/2 inch right now. The Turks are much more active, running around everywhere. I am a little concerned because it took longer for them to get here than I expected. They were sent Priority Mail on Wed., I expected them before the weekend, but they didn't arrive until Monday. The hissers have moved around some but not nearly as much as the Turks. TIA for any input!