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Thayeria Boehlkei (Weitzman, 1957)

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Thayeria Boehlkei (Weitzman, 1957)

The Thayeria Boehlkei is a species of Characidae fish endemic to the Amazon River basin and Araguaia River in Peru and Brazil. Popular with aquarium hobbyists where it is traded under a variety of common names including Blackline Penguinfish, Blackline Thayeria, Hockey-stick Tetra, Penguin Fish and Penguin Tetra. 

Latin name Thayeria Boehlkei
Size Up to 2.36 inches (6 cm)
Difficulty Easy
Water Temperature 71.6 – 79°F or 22 – 27°C
Water pH 6- 8 pH
Water Hardness 6 – 15 dGH
Peaceful or Aggressive Peaceful shoaling fish
Number of same species in tank Six or more, more is better
Community Fish Yes
Sexes Males are generally slimmer Females are larger and more rounder
Space in aquarium Middle to top
Food Flake food, blood worms and brine shrimp
Breeding Moderate to breed – require high quality water
Breeding temperature 79°F or 27°C
Common names Blackline Penguinfish, Blackline Thayeria, Hockey-stick Tetra, Penguin Fish, Penguin Tetra
Lifespan in aquarium Up to 5-6 years
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