연못 물고기들이 한곳으로 모여든 이유 #worker #process #creative #petfish #aquascape

Added: 2026-05-24

This video demonstrates how to create an inverted aquarium observation tank that allows viewing fish from above the water surface by utilizing atmospheric pressure differences. The process involves securing a metal frame to the pond bottom, placing a transparent acrylic tank upside down on the frame, using an air pump to create negative pressure that draws pond water up into the tank, and then scattering fish food to attract fish into the observation area. This technique leverages the physical principle that atmospheric pressure can push water upward when a partial vacuum is created, enabling fish to swim freely in the inverted tank while being visible from above.