Cross loach
Micronemacheilus cruciatus
Also known as Hovering loach, Dwarf hovering loach, Vietnamese multi-banded loach, Yunnanilus cruciatus, Pygmy Multi Stripe Loach, Dwarf banded loach
FreshwaterFish
Care at a glance
- Temperature
- 68–77°F
- 20–25°C
- pH
- 6.0–7.5
- Adult size
- 1.6 in
- 4 cm
- Minimum tank
- 14 gal
- 54 L
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Medium
- Rarity
- Rare
- Family
- Nemacheilidae
- Origin
- Native to slow, weedy streams and pools of central Vietnam, among dense vegetation.
Overview
Keep a shoal of at least 8 to 10 in a tank of 54 litres or more, at 20 to 25 C and pH 6.0 to 7.5, with gentle flow and plenty of plants. It is a micropredator that wants small live and frozen foods such as daphnia, baby brine shrimp and microworm, plus fine dry foods. Peaceful and small, it belongs with other nano fish like small rasboras, pygmy corydoras and shrimp.
In the wild
A tiny stone loach of about 4 cm that behaves unlike most of its family. Rather than hugging the bottom it hovers and swims in open water in a loose shoal, which is where the hovering loach name comes from. It likes gently flowing, well-planted water with clean conditions and does best in a nano or planted community. Soft to moderately hard water suits it well.
Good to know
It has passed through the genera Nemacheilus and Yunnanilus before settling in Micronemacheilus. It is one of the few loaches that spends much of its time suspended in midwater rather than resting on the substrate.
Did you know
It is one of the more willing loaches to spawn at home, scattering eggs into fine-leaved plants and moss when kept in a settled group.
Weekly picks
Tank mates
Cross loach is a peaceful, schooling species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Red line halfbeak
Hemirhamphodon phaiosoma
Freshwater2.6 in (6.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Green lace shrimp
Atyoida pilipes
Freshwater2.8 in (7 cm) · 14 gal (54 L)73–82°F (23–28°C)
Pridi loach
Schistura pridii
Freshwater1.8 in (4.5 cm) · 14 gal (54 L)68–77°F (20–25°C)
Arnold's killifish
Fundulopanchax arnoldi
Freshwater3 in (7.5 cm) · 14 gal (54 L)68–77°F (20–25°C)
Fire halfbeak
Hemirhamphodon kapuasensis
Freshwater2.4 in (6 cm) · 14 gal (54 L)73–81°F (23–27°C)
Paraguay black otocinclus
Otothyropsis piribebuy
Freshwater1.4 in (3.5 cm) · 14 gal (54 L)68–79°F (20–26°C)
Common questions
What size tank does a Cross loach need?
A Cross loach needs at least 14 gal (54 L). It spends most of its time in the middle.
What temperature and pH does a Cross loach need?
A Cross loach is comfortable at 68–77°F (20–25°C) with a pH of 6.0–7.5.
How big does a Cross loach get?
An adult Cross loach reaches about 1.6 in (4 cm).
Does a Cross loach need a group?
Yes. A Cross loach is a schooling species and should be kept in a group, not singly.
Related species
1.2 in (3 cm)14 gal (54 L)68–79°F (20–26°C)Rosy loach
Petruichthys sp. 'rosy'
1.2 in (3 cm) · 14 gal (54 L)
2.6 in (6.5 cm)20 gal (75 L)68–79°F (20–26°C)Inle loach
Yunnanilus brevis
2.6 in (6.5 cm) · 20 gal (75 L)
1.8 in (4.5 cm)14 gal (54 L)68–79°F (20–26°C)Assam banded loach
Neonoemacheilus assamensis
1.8 in (4.5 cm) · 14 gal (54 L)
2 in (5 cm)14 gal (54 L)64–75°F (18–24°C)Mini zebra loach
Yunnanilus pulcherrimus
2 in (5 cm) · 14 gal (54 L)
2.4 in (6 cm)20 gal (75 L)68–79°F (20–26°C)Thuttinjet stone loach
Nemacheilus stigmofasciatus
2.4 in (6 cm) · 20 gal (75 L)
1 in (2.5 cm)11 gal (40 L)68–77°F (20–25°C)Mango loach
Physoschistura mango
1 in (2.5 cm) · 11 gal (40 L)
