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Biotecus opercularis

Opercular Fish, Flapfin Biotecus
Temperature
24–30°C
pH
5–7
dGH
3–8 ppm
Size
8 cm
Tank
100 L
Biotecus opercularis is appreciated in the aquarium trade for its vibrant appearance and dynamic behaviors. They are generally peaceful fish, cohabiting well with other non-aggressive species. They enjoy a planted tank with plenty of hiding spots, though regular maintenance is essential to prevent overgrowth. A varied diet comprising predators will optimize their health, including live, frozen, and high-quality dry foods. They have been observed to form territories during breeding seasons.

Water parameters

Hardness
3–8 ppm
Temperature
24–30°C
pH
5–7

Tank & size

Fish size
8 cm
Tank length
100 cm
Tank volume
100 L

Distribution

Brazil: Rio Negro