I'd beware of feeding this to your frogs. They are very high in chitin, which could cause impaction. That hard shell will be difficult to digest. There are also a million pesticides on the market targeted specifically at this bug, I'd be concerned about whether this bug is free of toxins when it comes into to your tank. Also, the favorite foods of these bugs tend to be toxic to frogs and toads, the bug eats the plants, the frog eats the bugs, the frogs eat what the bugs ate. If you want free-wild caught, I'd go with worms and in a pesticide, fertilizer free area. Toads love them and they're very healthy for them.