Giant Predaceous Diving Beetle attacks fish

This natural behavior of Predaceous diving beetles in the nature of which I was able to make the video at home. Fierce predators, these beetles do not hesitate to attack prey larger then themselves, including small fish, tadpoles and frogs. Predaceous diving beetle, (family Dytiscidae), also called diving beetle, or true water beetle, any of more than 4,000 species of carnivorous, aquatic beetles (insect order Coleoptera) that prey on organisms ranging from other insects to fish larger than themselves. This beetles fly very well outside of
water and are attracted to lights at night. They are most active at night and can be seen moving from
one water source to another (puddles, pools, ponds, flooded roads, etc.). Walking on pool furniture
and patio sets is not unusual for the adventurous beetle.