I just read that you got the springs. Glad they made it.
I meant to send you a pm to warn you about the bag I sent them in some people freak out a bit when they get stuff in a biohazard bag. ( for reference the post office freaks a wee bit also)
Tank looks good. As long as you let the tank got for a few weeks before you get frogs ( after you add the springs ) they should get populated enough so the frogs dont eat them all and then they will always have a tasty snack available.