Sumatran Neon Loach

The Sumatran Neon Loach (Pangio filinaris or similar species often sold under this common name) is a slender, eel-like freshwater loach known for its glowing blue-green lateral sheen, active behavior, and peaceful temperament. These loaches are social bottom-dwellers that spend much of their time weaving through plants, leaf litter, and hiding spots.
Description
Slim, elongated, eel-like body
Iridescent neon blue/green stripe along the sides
Brownish or translucent base coloration
Peaceful, shy, and highly social; most active at dawn and dusk
Typically grows to 2.5–3.5 inches
Care Requirements
Tank Size:
Minimum 20 gallons, larger preferred for groups
Water Parameters:
Temperature: 75–80°F (24–27°C)
pH: 6.0–7.0
Soft to moderately soft water
Gentle flow with good filtration
Habitat:
Provide dense plants, driftwood, caves, leaf litter, and shaded areas
Soft substrate like sand to protect their delicate barbels
Dim lighting or floating plants preferred
Diet:
Omnivorous: frozen foods (bloodworms, daphnia, brine shrimp), sinking micro-pellets, and high-quality flakes
Enjoys small live foods
Behavior & Social Needs:
Keep in groups of 6 or more for natural, confident activity
Peaceful with other gentle community fish
Special Care Notes:
Needs very clean, well-oxygenated water
Sensitive to sudden changes in parameters
Cover the tank—loaches can be escape artists