They don't NEED that much food at all. Too much food makes a picky frog.

When my pacman was about quarter sized, he got large crickets and super worms, maybe 2-3, 3 times a week. If you want a STRONG feeding response, keep them humid, and hungry.

Now (I got him this June) he is eating rat pinks, once a week.

Can you post a pic of your frog and your setup?