Apistogramma psammophila

Scientific Name: Apistogramma psammophila
Common Name: (No widely established common name; often sold as A. psammophila)
Origin: Rio Negro basin, Brazil (blackwater tributaries)
Adult Size: Males ~6–7 cm (2.5–3 in), females ~4–5 cm (1.5–2 in)
Lifespan: ~4–6 years
Temperament: Peaceful but territorial during breeding
Minimum Tank Size: 20 gal long (pair), larger for harem
Layout:
Leaf litter and driftwood (important for tannins)
Multiple caves (coconut shells, wood crevices)
Dense planting or floating plants for cover
Dim lighting preferred

Substrate:
Fine sand (natural sifting behavior)
Temperature: 25–29 °C (77–84 °F)
pH: 4.5–6.5 (soft, acidic water strongly preferred)
Tankmates:
Small, peaceful fish (tetras, pencilfish, rasboras)
Bottom dwellers like Corydoras only in larger tanks
Avoid aggressive or large species