This is all quite interesting. Thanks for the replies.
It's always irritating when the crickets sit still, then jump far out so my frogs have difficulty catching them. Well, Gnag does, anyways. She prefers to quietly [and slowly] creep up on crickets as I described earlier. Bumpy's the ninja of the tank. She's the chaser of the pairand she can hop amazingly far for such a small frog, and she will NEVER give up once she's locked on. In militaristic perspectives, Bumpy's the jet, Gnag's the helicopter. Except Gnag packs more firepower
she's much bigger, and damn, she eats more. Bumpy tends to take a couple of crickets and be done with it. Gnag will eat as many as she can get.
Lol! I love the pictures of your treefrogs, Brian.
My frogs often detect a swimming cricket by small vibrations in the water. I know this, because the more mini-waves in the water there are, the faster my frogs come out of hiding.