Amazon puffer

Sphoeroides asellus

Golden dorsal bands and a white belly on an active swimmer

Dark bands cross a golden back above a white belly and clear fins. Sex is unspecified. Activity and social preference do not establish coordinated schooling.

Water temperature: 20–26 °C
pH: 5.5–8
Hardness: 2–15 dGH

Importer peacefulness and specialist community restrictions coexist; compatibility is not guaranteed.

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Appearance and identification

Use Sphoeroides asellus, retaining Colomesus asellus and the same UUID. Similar S. tocantinensis requires chin-flap, fin-ray and provenance checks, not colour alone.

Social behaviour and territory

Conspecific groups are suggested; numbers depend on space and observation.

Compatibility limits

Activity can disturb quiet companions; shrimp and snails are potential prey.

Space requirements

Provide open swimming space, stable filtration, oxygen and cover. The source 120 × 30 cm base is not carrying-capacity validation.

Aquarium environment

Balance plants with swimming room; shrimp safety is unverified.

Diet and feeding

Offer appropriate snails and varied shelled invertebrates; monitor feeding and beak.

Sources

www.aquariumglaser.de ↗ 2026-10-22

www.seriouslyfish.com ↗ 2026-10-22

researcharchive.calacademy.org ↗ 2026-10-22