Golden Pencilfish

Livoneca Infestation. Parasitic infestations (protozoa, worms, etc.)

At spawning time in captivity, male and female swim alongside one another. Several batches of 1 to 5 eggs are laid among the fine-leaved plants, with a total of up to 200 eggs in some cases; eggs hatch in 30 to 40 hours and fry are free-swimming about six days after (Ref. 7020). Between 24°-27°C, eggs hatch in 24 hours (Ref. 205).

Inhabits small rivers with little current and in swamps where they are very common. Forms groups where the males dominate to defend their territory. Is highly appreciated by aquarists (Ref. 12225). Feeds on worms, crustaceans and insects (Ref. 7020). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).

aquaculture: commercial; aquarium: commercial

Nannostomus beckfordi Günther

DIAGNOSIS.—Primary horizontal stripe well developed, secondary horizontal stripe poorly developed, and tertiary horizontal stripe absent. Nocturnal oblique bands present, permanent blotches absent. Adipose fin always absent. Gill rakers 9 or 10 + 17 or 18. Caudal fin with 10 principal rays terminating in the dorsal lobe and 9 in the ventral lobe.

Nannostomus beckfordi, (from the Greek: nanos = small, and the Latin stomus = relating to the mouth; beckfordi = in honor of British naturalist, F.J.B. Beckford), commonly known as the golden pencil fish or Beckford's pencil fish, is a freshwater species of fish belonging to the characin family Lebiasinidae. It occurs widely and commonly in swamps and slow-moving waters in Brazil, Guyana, French Guiana, and Suriname.