Erromyzon sp red spot

Erromyzon sp. Red Spot (Red Spot Hillstream Loach)

A rare gem from the fast-flowing streams of Southeast Asia, the Erromyzon sp. Red Spot is a stunning hillstream loach that captivates with its bold red-orange spots scattered across a sleek, flattened body. Perfectly adapted to life in high-current environments, this loach clings effortlessly to rocks and glass with its specialized sucker-like underside — a living work of art that doubles as a fascinating algae grazer.

Fish Details

• Adult Size: 4–6 cm (1.5–2.5 inches)
• Temperament: Peaceful; may be territorial with other hillstream loaches of the same species
• Diet: Herbivore/Omnivore — grazes on biofilm, algae, and aufwuchs; supplement with blanched vegetables (zucchini, spinach), algae wafers, and occasional small live/frozen foods
• Lifespan: 5–8 years with proper care

Tank Requirements

• Minimum Tank Size: 80 L (20 gallons)
• Water Temperature: 20–24°C (68–75°F) — prefers cooler, well-oxygenated water
• pH: 6.5–7.5
• Water Hardness: Soft to moderately hard
• Current: Strong water flow is essential — use a powerhead or high-flow filter to replicate their natural stream habitat
• Oxygenation: High — these fish require well-oxygenated water at all times

Compatibility

• Peaceful with most community fish; avoid housing with aggressive or boisterous species
• Can be kept with other hillstream loaches, but provide ample space and territories to reduce competition
• Excellent tankmates: small rasboras, danios, gobies, and other stream-dwelling species
• Avoid slow-water fish that cannot tolerate strong currents

Care Tips

• Smooth river rocks and flat stones are essential — they love to cling and graze on biofilm-covered surfaces
• A mature, well-established tank with natural algae growth is ideal before introducing this species
• Maintain pristine water quality with regular water changes; they are sensitive to poor water conditions
• Avoid sharp decorations that could damage their delicate undersides
• Supplement feeding if algae supply is limited — they can starve in overly clean tanks

A rare and rewarding species for the dedicated aquarist — the Erromyzon sp. Red Spot brings the beauty of wild mountain streams right into your home aquarium.