Zodiac Loach

Mesonoemacheilus triangularis

Zodiac Loach is a bottom-dwelling fish.

Semi-AggressiveBottom dwellerIntermediate – Advanced

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Need help with Zodiac Loach?

Explore compatibility, care or problems using this guide and your aquarium’s conditions.

Quick facts

Adult size: ≤ 2.4" (≤ 6 cm)
Aquarium size: ≥ 29.5" (≥ 75 cm) minimum length
Care level: Intermediate – Advanced
Temperament: Semi-Aggressive
Swimming zone: Bottom dweller
Temperature: 64–78°F (18–25.5°C)
pH: 6–7.5
GH: 2–12 dGH
Diet: Omnivore
Lifespan: up to 8 years

Care requirements

Care level: Intermediate – Advanced.

Lifespan: up to 8 years.

Water parameters

Suitable water: temperature 18–25.5 °C, pH 6–7.5, GH 2–12 dGH.

Temperament and compatibility

Zodiac Loach needs careful companion choice because it can be territorial or semi-aggressive.

Swimming zone and behavior

This fish uses the bottom area, so leave enough open substrate area for movement and feeding.

Feeding

As an omnivore, Zodiac Loach should receive a varied diet rather than one repeated food type.

Offer suitable-size sinking prepared foods supplemented with live or frozen Artemia, small worms and other invertebrates.

Before adding this fish

Plan for an aquarium of ≥ 29.5" (≥ 75 cm) minimum length.
Choose other fish carefully around this temperament.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: India.

Important notes

Temperament varies: some individuals may harass bottom dwellers, including other similar loaches.
Maintain a socially appropriate group with substantial rock refuge areas, high oxygen and clean moving water; respond to actual aggression.
A claimed ten-fish minimum and universal solitary housing are both unsupported by the inspected specialist evidence.

Similar fish profiles

Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.

Barito Loach Kapuasia falaris Same family Similar care level Bottom dweller Beginner – Intermediate 2.4–3.1" (6–8 cm) 72–79°F (22–26°C) Argentine Humphead Gymnogeophagus balzanii Similar care level Same temperament Bottom dweller Intermediate ≤ 7.9" (≤ 20 cm) 70–77°F (21–25°C) American Flagfish Jordanella floridae Similar care level Same temperament Similar diet Beginner – Intermediate ≤ 2.4" (≤ 6 cm) 64–75°F (18–24°C) Blackfin Pearl Killifish Austrolebias nigripinnis Similar care level Same temperament Bottom dweller Beginner – Intermediate ≤ 1.8" (≤ 4.5 cm) 64–72°F (18–22°C) Blue Scraper Cichlid Neochromis omnicaeruleus Similar care level Same temperament Bottom dweller Intermediate ≤ 4.7" (≤ 11.9 cm) 73–81°F (23–27°C) Adolfos Catfish Hoplisoma adolfoi Similar care level Bottom dweller Similar diet Beginner – Intermediate ≤ 2.4" (≤ 6 cm) 68–79°F (20–26°C)

FAQ

How large does Zodiac Loach get?

Zodiac Loach reaches ≤ 2.4" (≤ 6 cm).

What aquarium size does Zodiac Loach need?

Use an aquarium of at least ≥ 29.5" (≥ 75 cm) minimum length.

Is Zodiac Loach peaceful?

Zodiac Loach needs more careful companion choice because the temperament data points toward boundaries, space, or similar-sized fish.

What temperature is suitable for Zodiac Loach?

Keep it between 18 to 25.5 °C.