Two Spot Astyanax (Astyanax bimaculatus)

From The Aquarium Wiki
Jump to: navigation, search

Two Spot Astyanax

No Image.png
Two Spot Astyanax

Astyanax bimaculatus

170 Litres (45 US G.)

12.7-15.2cm (5-6 ")




5.5 - 7.5

20 -28 °C (68-82.4°F)

5-25 °d

1:2 M:F

Pellet Foods
Flake Foods
Live Foods
Other (See article)

5-12 years



Additional names

Two Spot Astyanax, Twospot Astyanax

Additional scientific names

Astyanax bimaculatus borealis, Astyanax bimaculatus incaicus, Astyanax bimaculatus novae, Poecilurichthys brevoortii, Salmo bimaculatus, Tetragonopterus bahiensis, Tetragonopterus bartlettii, Tetragonopterus gronovii, Tetragonopterus linnaei, Tetragonopterus maculatus, Tetragonopterus orientalis, Tetragonopterus vittatus, Tetragonopterus wappi

Sexing[edit | edit source]

Not easy to sex, females will be fuller in the belly.

Tank compatibility[edit | edit source]

A shoaling fish that must be kept in groups of 6 or more. Due to their high activity levels they should not be kept with shy or nervous fish, nor with slow moving fish.

Diet[edit | edit source]

This fish will accept most foods including pellet and flake, spirulina, brine shrimp and daphnia and they will also nibble on blanched vegetables.

Feeding regime[edit | edit source]

Feed once or twice a day.

Environment specifics[edit | edit source]

They should have a spacious tank with plenty of open swimming space and some current, décor in the form of bogwood and driftwood branches is appreciated, they may nibble soft plants but hardy plants like Java Fern may work best.

Behaviour[edit | edit source]

A very active shoaling fish.

Identification[edit | edit source]

With a body shape similar to the more often seen Serpae Tetra, this fish is pale and iridescent in colour with two dark spots, one just behind the gills and one on the caudal peduncle, giving it its common name.

Pictures[edit | edit source]

External links[edit | edit source]