In Japan, fish are released into the drainage system not to discard them, but to help keep the water clean.

🇯🇵JAPAN’S DRAINS HAVE FISH—AND THEY’RE CLEANER THAN YOUR SHOWER

In Japan, fish are released into the drainage system not to discard them, but to help keep the water clean.

These drains flow with crystal-clear water, and the presence of fish encourages people to treat them with… pic.twitter.com/wpb9K6ikPi

— Mario Nawfal (@MarioNawfal) May 2, 2025

JAPAN’S DRAINS HAVE FISH—AND THEY’RE CLEANER THAN YOUR SHOWER In Japan, fish are released into the drainage system not to discard them, but to help keep the water clean. These drains flow with crystal-clear water, and the presence of fish encourages people to treat them with respect. No one litters when koi are swimming by. Instead? More fish get added. The result: a self-cleaning, living waterway that turns urban infrastructure into a peaceful, public aquarium.

Source: The Hidden Conspiracy