Why Betta Fish is Lazy : Staying at bottom

When Do Fish Sleep? | How Do Fish Sleep? | Letstute

Uncover The Mystery: How Do Fish Sleep?

I Lost My All Fish Due to Low O2 in My Aquarium | These 4 Red Alarming Signs You Shouldn't Ignore

月と潮汐が、フエダイ、アジ、ヒラマサなどの魚の食時間にどのように影響するか。

魚は眠るのか？ | BYJUの面白い事実

Garfield fish life at night with less light!?

Why your Fish sit's at Bottom of your Tank | 3 Reasons

魚は眠るのか？

How do fishes sleep at night ? Fish facts SCIENCE COLLECTOR

How Do Fish Sleep (and Why It's So Weird)

Do Fish Sleep? The Surprising Truth Revealed!

40 Year Study Shows The Best Time Of Day To Fish…(It’s Not When You Think)

Leopard Family Learns to Fish at Night | BBC Earth

5 ways to keep your Betta fish Happy

ベタが水槽の底に沈む4つの理由

観賞魚には光が必要ですか、それとも光がなくても生きていけるのでしょうか？

FLOWER HORN FISH PLAYING (MIND VOICE)

Why I DYE my fish’s water BLUE

テトラの隙間で穴釣り、おでんの具が入れ喰い。