ugh bothGet the L. parahybana now, and save the H. lividum for a little later. If you're fairly new to the hobby, you will much prefer the gratification of seeing and interacting with your giant hairy spider. What fun is a blue spider if you have to convince your friends that it's actually in there? People that do have Cobalt Blue's usually have several other Ts to look at, so they don't mind almost never seeing it.