Reduce stress at all times. Stress can cause frogs to go into shock, leading to spasms. Sometimes a frog in shock can look as if it is dead. Immediately soak the frog in a sugar water solution or dust the frog with calcium and vitamin D. Spray the frog with water, and then rub the calcium and vitamin D into the skin. Wait a day to see if your frog is still alive.
Overcrowded frogs or too many food items in a cage can cause a frog significant stress. In some species, the females (and sometimes the males) will wrestle, which results in a dominant frogs. The less dominant frogs may stop eating if they do not have access to food or are not able to compete for food items. This can be remedied by providing adequate space and hiding areas in your frogs’ habitat and putting fewer frogs in an enclosure.