Ever wondered why the upside‑down catfish swims belly‑up? It’s not confused — it’s clever! This quirky fish has evolved to swim upside down so it can feed more easily at the water’s surface and graze on algae along the underside of rocks and plants. Native to the Congo River Basin, the upside‑down catfish’s unusual style is a brilliant survival trick, and one of the many wonders of the aquatic world. Come see this fascinating behaviour in action at the National Aquarium of New Zealand! | Nationa

Upside-down catfish | T.T.P-Animals

937 reactions · 53 shares | The upside-down catfish's topsy-turvy swimming behavior helps them eat food that's sitting on the water's surface. But when they swim belly-down, is it upside-down or right side up? (Either way, you can enjoy watching them swim in the "Water Planet" section of our Steinhart Aquarium.) | California Academy of Sciences | Facebook

True Upside-Down Catfish (Synodontis nigriventris) 😸🐟😸🐟 😸🐟😸🐟 😸🐟😸🐟 😸🐟😸🐟 A small, peaceful catfish from the Congo River known for its quirky habit of swimming upside down. Grows to around 3–4 inches and does best in a small group. Care: Tank: 80L with hiding spots and gentle flow Water: 24–28°C, pH 6.0–7.5 Diet: Sinking pellets, frozen foods, and some veg Temperament: Very peaceful, ideal for community tanks A hardy, characterful fish that’s always a customer favourite — great for