I personally feed nightcrawlers, Dubya roaches, and crickets for a treat.

Dubya: at least 2 everyday.
nightcrawlers: 5 to 10 every 2 to 3 days
Crickets: once a week about about 50 crickets all at once feeding frenzy style
I will also give my adult frog 1 young rat pup every other month.

4 baby frogs feed as many crickets for worms and they will eat in 15 minutes everyday

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Thanks
DW