If you want to try a cricket experiment sooner you might try putting the toad in a small shoebox feeding cage with some crickets. I have to admit that while most toads are easy with this, it took me several tries with one nervous marinus who simply flooded the cage with urine and ignored the crickets, but eventually this became her preferred feeding method and she continued not to eat in the main enclosure but had a vigorous feeding response placed in her familiar feeding cage.