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Fish Freshwater Care: medium Semi-aggressive

Green Tiger Loach

Syncrossus hymenophysa
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Other names: Tiger loach, Tiger botia, Botia hymenophysa
Group: Loaches and bottom dwellers · Family: Botiidae · Origin: Southeast Asia — Sumatra, Borneo (West Kalimantan, Sarawak) and the Malay Peninsula

An aggressive botia reaching 20 cm, with 12–15 blue-edged dark bands on a greenish-yellow body and a dark blotch on the dorsal fin. It resembles the banded tiger loach; it needs a large aquarium and a big group.

Will it suit my tank?

Last updated October 16, 2026

Temperature
25–29°C
pH
5.5–7.5
Hardness
2–12 dGH
Adult size
20 cm
Minimum tank size
300 liters
Social structure
School
Group
at least 5, ideally 6+
Swimming zone
Bottom
Diet
Omnivore
Breeding
Other

Water parameters

Temperature25–29°C
pH5.5–7.5
General hardness (GH)2–12 dGH
Recommended range
May escape, needs a lid Fin nipper Eats shrimp Eats snails Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The green tiger loach is very similar to the banded tiger loach (Syncrossus helodes); its more numerous (12–15), bluish-edged bands and the dark blotch on the dorsal fin set it apart. Juveniles are long and slender; with age the body deepens and reaches 20 cm. In the wild it lives over a wide range of habitats, from small mountain streams to large river channels and lakes, near sunken trees and roots.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 300 liters and 150 cm of length for 5–6 adults.
  • 25–29°C, pH 5.5–7.5; clean, well-oxygenated water and moderate flow.
  • Roots, large stones and many caves; decor that breaks lines of sight.
  • A tight lid is essential; it jumps.

Diet

October 16, 2026 · Suggest an edit

An omnivore leaning toward meaty foods. Offer sinking granules and tablets, frozen bloodworms, tubifex, brine shrimp, mysis and small amounts of vegetables. It hunts snails and shrimp.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

It can be rough, especially toward fish smaller than itself; it frequently fights over rank within its own species. Bullying increases when it is kept in small numbers.

Good companions: large barbs, devarios, big and fast tetras, large botias such as the clown loach.

Avoid: snails, shrimp, small and timid species, slow long-finned fish.

A short profile for this species

The Green Tiger 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