First of all, the oral structure and digestive system of bullfrog may not be suitable for digesting barley worms. Animals of different species have different oral structures and digestive systems, which are related to their eating habits and living habits. Small African bullfrogs may not be able to adapt to digesting barley worms.

Secondly, wheat worms may not be the first choice for African bullfrogs. Small African bullfrogs usually feed on insects, earthworms, beetles and other small arthropods. They are more accustomed to hunting and eating in water, so they may prefer to eat in water rather than eating barley worms.

In addition, it may be caused by individual differences. Just like humans, different African bullfrogs may have different food preferences and tastes. Some people may prefer other foods to barley worms.

Generally speaking, the reason why African bullfrogs don't eat wheat worms may be due to the inadaptability of oral structure and digestive system, food choice and individual differences. I hope it can help your problem.