I have a large (4'x8'x6') planted paludarium. The lower section is water, and I have planted pots siting in the water. It isn't glass; it is wood, with a pond liner holding the water. In the water are some Silurana tropicalis. They have lots of space, and lots of plants and pots to hide amongst.
The problem? I hardly ever see them, and am having a hard time feeding them. When I offer them pellets or earthworms, they take off and hide. If I leave food in there, it seems to either disintegrate (pellets) or get underneath a pot (earthworms).
Does anybody have any better ideas to offer for feeding them in this sort of situation?