I have a Butterfly Net that I run across the grass in the back yard. I scoop up hundreds of newborn insects in early Spring, they won't pose a biting problem. Even the grasshoppers are small and I'm not worried about the occasional baby grass spider I might pick up. The Grays gobble them all up. Down side with the spiders is that I think they are eating my Springtails. Don't feed Butterflies -somewhat toxic. You might find a net full of the tiniest black beetles the frogs will relish as they hunt them through the night.

Quote Originally Posted by Fingolfin View Post
This may take awhile, but you could get a few insects frog the outdoors that are not poisonous and the are about the right size, then breed them for a few generations and feed those offspring. They should then be frog safe. Another option, if your frog was wild caught in the first place, is just get insects from outside if you can be sure that there are no pesticides used in the area

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