FLAGTAIL PORTHOLE CATFISH

🚩 Flagtail Porthole Catfish (Dianema urostriatum) – Active, Peaceful, and Perfect for Community Tanks

The Flagtail Porthole Catfish is a unique, peaceful, and highly active bottom-dweller with a sleek bronze-silver body, black "porthole" markings along the sides, and a beautifully striped tail fin that gives it its "Flagtail" name. Native to the slow-moving streams and floodplains of the Amazon Basin, this catfish adds movement, personality, and visual interest to community aquariums and South American biotopes.

Unlike most bottom-dwellers, Flagtail Portholes often swim mid-level and in small groups, making them more visible and interactive. They're peaceful, hardy, and thrive in planted tanks or soft substrate setups—making them a fantastic alternative to traditional Corydoras.

🐟 Species Profile:

• Scientific Name: Dianema urostriatum

• Common Name: Flagtail Porthole Catfish

• Adult Size: 4–5 inches

• Temperament: Peaceful, schooling

• Tank Size: 30+ gallons

• Water Parameters: 74–80°F | pH 6.0–7.5 | Soft to moderate hardness

• Diet: Omnivore – eats sinking pellets, frozen foods, algae wafers, and detritus

🛠️ Tank Setup & Compatibility:

Flagtail Portholes thrive in:

• Sandy or smooth substrates to protect their barbels

• Aquariums with hiding spots, driftwood, and live plants

• Groups of 4+ for best behavior and confidence

Compatible with:

• Tetras, rasboras, corydoras, apistos, peaceful barbs, dwarf cichlids

• Excellent tank mates for other bottom dwellers or mid-level community fish

• Avoid large, aggressive species or overly boisterous fish

Behavior:

• 🧽 Constant foragers, scavenging uneaten food and detritus

• 🐠 Mid- to bottom-level swimmers, more active than most catfish

• 💨 Surface breathers – will occasionally dash upward for a gulp of air

🛒 Why Buy from RobsAquatics.com?

Each Flagtail Porthole Catfish is:

• ✅ Hand-selected for health and color clarity

• ✅ Tank-raised and conditioned for peaceful communities

• ✅ Carefully packed and protected by our Live Arrival Guarantee

• ✅ Ideal for planted tanks, community aquariums, and unique Amazonian setups

📦 Add unique movement and peaceful personality to your tank with the Flagtail Porthole Catfish—a rare and underrated gem perfect for any community or biotope display. Now available at RobsAquatics.com.