🐟 Elephant Ear Betta Fish (Betta splendens)
🐟 Elephant Ear Betta Fish (Betta splendens)
Solitary Display Fish • Oversized Wing-Like Pectoral Fins • Loves Gentle, Sponge-Style Filtration
📋 The Elephant Ear Betta, also called the Dumbo Betta, is recognised by oversized, wing-like pectoral fins, the paired fins just behind the gills used for steering and balance, which fan out dramatically compared to a standard betta's small, transparent ones. The trait is recessive, affects only the pectoral fins, and can appear alongside any tail type or colour.
Those big pectoral fins make the fish work a little harder to swim, so a gentle sponge filter is the best match: a standard hang-on-back filter's output can exhaust it or tear the delicate fins. It's also normal for Elephant Ear bettas to rest more on leaves or the substrate than other varieties, simply because the fins are heavier. That isn't automatically a sign of illness, though constant lethargy paired with clamped fins or no appetite is worth investigating.
Because the large fins slow it down, this variety is more vulnerable to fin-nipping tankmates than short-finned bettas. As with all bettas, keep it solitary, since males are territorial and must never be housed with another male.
💡 Highlights
🐘 Oversized Pectoral Fins: A dramatic "elephant ear" wingspan
💧 Loves Gentle, Sponge-Style Filtration: Calm flow protects the fins
😴 Extra Resting Is Normal: The heavy fins mean more downtime
👑 Peaceful Yet Territorial: Best kept singly
🎨 Any Colour or Tail Type: The trait is independent of colour genetics
🧾 A Quick Look at the Elephant Ear Betta Fish
📛 Common Name: Elephant Ear Betta Fish (Dumbo Betta)
🔬 Scientific Name: Betta splendens — Elephant Ear / Dumbo pectoral fin trait
👨👩👧 Family: Osphronemidae
🌍 Origin: Thailand (selectively bred pectoral fin strain)
📏 Max Size: About 6-7cm body length; appears larger because of the fin wingspan
🧂 Water Type: Freshwater
🌡️ Temperature Range: 24-28°C (75-82°F); steady warmth, with a heater only if your water would otherwise drop below about 24°C
🧪 pH Range: 6.5-7.5
🧠 Care Level: Easy; gentle, low-flow filtration suits it best
💖 Temperament: Territorial; more vulnerable to fin-nippers because it swims more slowly
🏠 Min Tank Size: 19 L (5 gallons) minimum; larger is better
📌 Tank Level: Top to mid-water; has a labyrinth organ for gulping surface air
🧬 Stock Type: Captive-bred; recessive pectoral fin trait
⏳ Lifespan: 3-5 years with proper care
🍽️ Diet: Carnivore
🐣 Reproduction: Bubble nester

















