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In a large tank like that crickets are very easily lost. If you plan on feeding crickets, I would recommend removing the toads individually during feeding time so the crickets can get away and end up dead and rotten in the corner. This method will also help you monitor how much each toad is eating.

You can always cut the worms to size to suit your toads' needs. Cut the worm into pieces no longer than the space between the toad's eyes and it will be perfect for swallowing.

In terms of digestion, the worms (earthworms/nightcrawlers (NOT MEALWORMS OR SUPERWORMS)(added this for anyone who reads this and is unsure)) are actually way easier to digest and way more nutritious than crickets.

I'll add this in there too: remember to use calcium poweder with vitamin d3 at least every other feeding and a multivitamin powder once a week (Recommend Repashy brand, always reliable). Just dust the stuff on