Mybe you've freaked your frog out im using on my frog worms as they easy to eat cheap an easy to keep also I dust mine with calcium and d3 also try an feeding the frog in a small tub an leave him to it I do it every day at 1st 1 worm now 3 in one go yes 3 worms in 1 mouthful so I try an more in leave him 5 to 10 mins with them if he anit eaten them just tryin to get out off tub then I know he's eaten an try him again in morning or when he's in the water I feed him then good luck