L397 Alenquer Tiger Pleco

Hailing from the Alenquer region of the lower Amazon basin in Brazil, this small panaque-relative punches well above its weight in terms of visual impact. Those bold black and golden-orange tiger stripes are genuinely striking, and unlike some l-numbers that fade with age, L397s tend to hold their pattern well into adulthood. They max out somewhere around 8 to 9 centimeters, which puts them firmly in nano-pleco territory and makes them viable for tanks that couldn't house a common pleco in a lifetime.

Water conditions should lean toward the softer, slightly acidic side to mirror their Amazonian origins. Somewhere between pH 5.5 and 7.2 works fine, and soft water with low GH is ideal, though captive-bred specimens are meaningfully more forgiving than wild-caught fish. Temperature between 25 and 30 degrees Celsius suits them well. Moderate flow is appreciated but not critical if oxygenation is otherwise good.

Diet is where most beginners stumble. L397s are xylophagous, meaning they actually digest wood as part of their nutrition. Driftwood in the tank isn't decorative, it's a core food source. Beyond that, they'll accept zucchini, cucumber, sinking wafers, and the occasional high-protein food like a bottom-feeding pellet. Algae is grazed opportunistically but shouldn't be counted on as a staple.

They're mostly nocturnal and spend daylight hours tucked into a cave or wedged under a piece of wood. Don't mistake inactivity during the day for poor health. Give them caves, give them wood, and dim the lights occasionally, and you'll see a surprisingly active and personable fish emerge once the sun goes down.