The survived but tamed

  • Posted on
  • by
  • in
The half of fishes in the tank passed away since the start of keeping. The other half of fishes survived in honor but tamed like Pavlov's dog. Motion around the water surface attracts fishes even when there is no feed on it. As shown in the video, in response to finger move, fishes intensively jump up to water surface to catch pseudo-prey. :)