• Scientific name: Abramites hypselonotus
• Synonyms: Abramites hypselonotus hypselonotus, Abramites hypselonotus ternetzi, Abramites microcephalus, Abramites solarii, Abramites ternetzi, Leporinus hypselonotus, Leporinus nigripinnis, Leporinus solarii
• Common name: Marbled headstander, High-backed headstander
• Group: Characins
• Habitat: South America; Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Venezuela, Paraguay and Argentina
• Size: 14 cm
• Biotope: Found in large rivers with turbid water and also in slower-moving blackwater streams, or in flooded areas.
• Social behavior: Quite peaceful schooling fish, yet may nip the fins of long-finned species. Can be kept with robust cichlids and catfishes in a community tank. Its best kept in a larger group as they tend to fight among themselves in smaller groups.
• Diet: Omnivorous; an opportunistic eater in the wild: insect larvae, organic detritus and filamentous algae are its main diet. It will accept live, frozen and dried foods in aquarium. Supplement its diet with some vegetable matter, or the fish will eat soft-leaved plants.
• Breeding: It has not yet spawned in captivity.
• Tank: Minimum 140 litres
• Population: 6-8 fish for 200 litres
• Decoration: Provide plenty of current. Pile up wood and smooth stones to create places it can retreat to. Only hardier plants are suitable in their aquarium as they may eat soft-leaved plants.
• Temperature: 23-27 °C
• pH: 6-7.5
• Hardness: 1-18 NK°
• Lifespan: 10-15 years

Description: Marbled headstander is an elongated, tall fish which has an arched back when adult. The head is small, and the snout is pointed. Abramites hypselonotus has a light brown body color with 7-9 dark vertical bands. The forehead and the adipose fin are yellow. The dorsal and pelvic fins have dark bands, while the other fins are transparent. Marbled headstander is usually swimming and hovering in the tank with its head pointed downwards, grazing algae off rocks and searching for fallen food.

Abramites hypselonotus are difficult to sex visually, mature females may appear plumper. Unfortunately breeding in aquaria has not yet been accomplished.