Skip to content
Fish Freshwater Care: hard Peaceful

Vietnamese Giraffe Loach

Annamia normani
— No votes yet Rate it
Other names: Vietnamese lizard loach, Vietnamese homaloptera, Parhomaloptera normani
Group: Loaches and bottom dwellers · Family: Gastromyzontidae · Origin: Southeast Asia — Mekong tributaries (Vietnam, Laos, Cambodia) and the eastern coastal rivers of Vietnam

A 10 cm hillstream loach with a flat body, broad fins and a long lower tail lobe. It needs a large group (8+), very strong flow and plenty of oxygen; it grazes on biofilm and algae on stones.

Will it suit my tank?

Last updated October 16, 2026

Temperature
21–25°C
pH
6.5–7.5
Hardness
1–10 dGH
Adult size
10 cm
Minimum tank size
120 liters
Social structure
Colony
Group
at least 8, ideally 10+
Swimming zone
Bottom
Diet
Herbivore
Breeding
Other

Water parameters

Temperature21–25°C
pH6.5–7.5
General hardness (GH)1–10 dGH
Recommended range
Considered shrimp safe Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The Vietnamese giraffe loach is a flat-bodied hillstream loach of about 10 cm that lives in the shallow, fast-flowing, rocky stretches of Mekong tributaries. Its mouth is small and set back under the snout; the lower lobe of the tail fin is distinctly longer. The body color ranges from golden brown to gray, and its shade can change depending on the surface it rests on. In the wild it forms large groups; when kept in small numbers it becomes very shy. Although it was long thought to feed on insect larvae, it has turned out that the main food of adults is the layer of blue-green algae on stones.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 120 liters and 120 cm of length for a group of 8–10.
  • 21–25°C, pH 6.5–7.5, soft to moderately hard water.
  • Very strong flow and plenty of oxygen are essential; a high-capacity filter, circulation pumps and an air stone.
  • Rounded stones, rocks and gravel; a mature aquarium where biofilm has formed.

Diet

October 16, 2026 · Suggest an edit

It grazes on biofilm and algae on stones. Spirulina-based dry foods should be the staple, supplemented with bloodworms, tubifex and brine shrimp.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

Generally peaceful, but the choice of tankmates is limited; it loses the competition for food against fast, greedy fish.

Good companions: small current-loving danios and rasboras, other peaceful hillstream loaches.

Avoid: large and greedy bottom dwellers, goldfish, species that need warm, still water.

A short profile for this species

The Vietnamese Giraffe Loach page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

0 notes

Things you won't find in books, learned by trial and error. The most helpful ones are on top.

No notes yet. If you have experience with this species, leave the first note.
Change history and contributors
  1. Page created · October 16, 2026