1. Is this an adult pair? Or two babys?
If this is babies or juvies I would tell you to keep them in a smaller area with some vertical climbing/hiding surfaces and a bare bottom. This setup allows you to make sure they are getting enough to eat and monitor their growth.
2. Now If we are talking mature geckos there is no cooler way to keep them than in a fully decorated natural looking taank. I have kept a pair in the setup pictured below for the last 3.5 years. This is a 55 and they have no problem finding or catching the crickets. In fact as soon as the light turns off they both magicaly appear at the end were I "dump" the crickets in and place the dish for cgd. Dont underestimate their hunting ability.
Watch and listen for hiding crickets, make sure decorations are not toxic, don't feel bad when they trample your display and you will both enjoy!
Oh yeah babies are really hard to find so try to make a nesting spot to find any eggs.
