Biotodoma cupido
Scientific Name: Biotodoma cupido
Common Name: Cupid Cichlid
Origin: Amazon basin (Brazil, Peru; slow-moving tributaries)
Adult Size: ~10–12 cm (4–5 in)
Lifespan: ~6–8 years
Temperament: Peaceful, shy; schooling cichlid
Minimum Tank Size: 55 gal (group of 5–6 recommended)
Layout:
Fine sand substrate (constant sifting behavior)
Driftwood and leaf litter for a natural feel
Open areas for group movement
Soft lighting; tannins preferred
Substrate:
Essential: fine sand
Temperature: 25–29 °C (77–84 °F)
pH: 5.5–7.0 (prefers soft, slightly acidic water)
Tankmates:
Peaceful fish (tetras, pencilfish, Corydoras, small Geophagus)
Avoid aggressive or fast, boisterous species
Notes:
Best kept in groups—more natural behavior and less stress
Sand-sifter; great display fish with subtle beauty
Omnivorous: fine pellets, frozen foods, small live foods
Sensitive to poor water quality—stable, clean conditions are key