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Fish Freshwater Care: hard Peaceful

Saddled Hillstream Loach

Homaloptera orthogoniata
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Other names: Saddle-back loach, Homaloptera
Group: Loaches and bottom dwellers · Family: Balitoridae · Origin: Southeast Asia — Borneo (Sarawak and Kalimantan)

A 10 cm hillstream loach with dark saddle bands on a long body that is flattened underneath. It lives clinging to stones; it needs strong flow, plenty of oxygen, cool water and a mature aquarium.

Will it suit my tank?

Last updated October 16, 2026

Temperature
20–25°C
pH
6–7.5
Hardness
1–10 dGH
Adult size
10 cm
Minimum tank size
110 liters
Social structure
Colony
Group
at least 5, ideally 6+
Swimming zone
Bottom
Diet
Omnivore
Breeding
Other

Water parameters

Temperature20–25°C
pH6–7.5
General hardness (GH)1–10 dGH
Recommended range
May escape, needs a lid Considered shrimp safe Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The saddled hillstream loach is a current-dwelling fish endemic to Borneo, with a long body flattened on the underside. It holds on to stones with its broad, horizontally spread pectoral fins and can even climb glass. Its sand-brown body has dark saddle bands across the back. Fish that come up for sale are often thin and the first weeks are critical; for this reason it is suitable for experienced hobbyists.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 110 liters and 120 cm of length for a group of 6.
  • Cool water at 20–25°C, pH 6–7.5, soft water.
  • Strong flow and plenty of oxygen are essential; a high-capacity filter, a circulation pump and an air stone.
  • Rounded stones and gravel; it only goes into a mature aquarium where biofilm has formed. A tight lid is needed.

Diet

October 16, 2026 · Suggest an edit

It grazes on biofilm and algae on stones. In the aquarium, frozen or live foods such as daphnia, brine shrimp and bloodworms should be given regularly; some individuals also accept sinking dry food.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

It is not aggressive, but choosing tankmates matters. In the wild it lives in groups; when kept alone or in small numbers it becomes timid.

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

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

A short profile for this species

The Saddled Hillstream 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

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Change history and contributors
  1. Page created · October 16, 2026