Red Minor Serpae Tetra
Hyphessobrycon callistus

Care Level




Reef Compatible


Plant Safe


Max Size

2" - 5"

Minimum Tank Size

10 gallon


Red, Orange, Black



Water Conditions

Slightly acidic (6.0-7.5 pH), intermediate water hardness (6-12 dGH), 72 to 84 degrees Fahrenheit


General: The Red Serpae Minor Tetra (Hyphessobrycon callistus) makes a great addition to any small community tank. Naturally being a tetra from Paraguay, the Red Minor will prefer a heavily-planted environment with only small amounts of current. This smaller, hardy species of tetra will only reach a length of up to two inches and can live up to ten years in captivity.

Fecundity (Reproduction): The female Red Minor Tetra (Hyphessobrycon callistus) can produce up to 300 eggs per clutch. The Red Minor Tetra is considered, by the hobby, to be a prolific breeder. When attempting to breed fish, it is best to closely mimic the species natural living conditions. Attempt to maintain a slightly acidic pH of 6.5, an intermediate water hardness of 6 to 12 dGH, and a water temperature of 80 degrees Fahrenheit.

Preferred Water Chemistry: Slightly acidic (6.0 to 7.5 pH), intermediate water hardness (6 to 12 dGH)

Aquarium Diet: Brine shrimp, baby brine shrimp, blackworms, general flakes, omnivore pellets, Spirulina

Dimorphism: The male Red Minor Tetra (Hyphessobrycon callistus) will demonstrate brighter coloration and will have a completely blackened dorsal fin. Once mature, the female Red Minor Tetra will take on a more gravid appearance.

Compatibility: The Red Minor Tetra (Hyphessobrycon callistus) is typically compatible with other small Tetra, Danio, Rasbora, Corydoras, Hatchetfish, and South American Dwarf Cichlids (Ram, Apistogramma). The Red Minor Tetra may also be kept with the Livebearers (Guppy, Swordtail, Platy).

Red Minor Serpae Tetra Videos

Author: Aquatics Unlimited