Eunotus Apisto (Apistogramma eunotus) Care Guide
Apistogramma eunotus is a South American dwarf cichlid; this guide covers its habitat, water parameters, diet, compatibility and breeding.
Compiled by Aquairi from published sources · Published · Updated
Overview
Apistogramma eunotus is a dwarf cichlid of the family Cichlidae, described by Kullander, 1981. It is native to the Amazon River basin, in tributaries of the Ucayali and Amazon rivers and the Yavari River in Peru and the Japura River in Brazil; the species was described from the Rio Ucayali near Pucallpa in central Peru. According to FishBase, it reaches about 5.3 cm in standard length.
Taxonomy
- Family: Cichlidae
- Scientific name: Apistogramma eunotus
- Describing authority: Kullander, 1981
Habitat
The Amazon River basin, in tributaries of the Ucayali and Amazon rivers and the Yavari River in Peru and the Japura River in Brazil; the species was described from the Rio Ucayali near Pucallpa in central Peru forms the natural range of this species. Like most members of the genus, it favours sheltered margins of streams and creeks with leaf litter and gentle flow. Apistogramma species typically occur in shallow water, often less than 40 cm deep.
Tank requirements
- Minimum tank volume: 80 L (~21 US gal)
- Temperature: 24-28 °C (75-82 °F)
- pH: 5.5-7.5
- GH: 2-12 °dGH
- Adult size: 6-8 cm
- Lifespan: 3-5 years
Diet
Apistogramma are omnivores that lean toward micropredation, feeding on aquatic insect larvae, small invertebrates and other tiny prey in nature. In the aquarium they take live and frozen foods such as bloodworms, brine shrimp and water fleas, and many specimens also accept prepared foods.
Compatibility
This is a semi-aggressive, bottom-oriented dwarf cichlid. It is best kept with peaceful upper- and mid-water dither fish such as Cardinal Tetra, Rummy-Nose Tetra, Sterbai Corydoras, Hatchetfish. Housing more than one male of the same species, or combining it with angelfish or larger aggressive cichlids, is discouraged because of territorial conflict, particularly during breeding.
Breeding
Apistogramma are cave spawners. Eggs are laid on the ceiling of a cave or sheltered cavity, and the female tends the eggs and fry while the male guards the wider territory. In Apistogramma eunotus, the female typically deposits 100-150 eggs deposited on a cave ceiling, with the female tending eggs and larvae. Soft, slightly acidic water supports spawning.
Conservation status
IUCN Red List: Least Concern (LC), assessed 2020.
Apistogramma eunotus Breeding Guide
Overview
Apistogramma eunotus was described from the Rio Ucayali near Pucallpa in central Peru and is widely distributed across Amazonian tributaries including the Itaya, Samiria, Ampiyacu and Yavari basins. It carries the DATZ code A73 and belongs to the A. eunotus subcomplex within the A. regani complex of the A. regani lineage. Seriously Fish describes it as a substrate spawner that lays eggs in crevices or cavities among the decor, with the female taking full responsibility for the brood.
Sexing
Males are larger, more colourful and develop more extended fins than females. Males reach about 5.5 cm standard length, while females attain around 4 cm maximum. The larger, more ornate male contrasts with the smaller, plainer female.
Conditioning
As a carnivorous dwarf cichlid, A. eunotus is conditioned on small live and frozen foods. Wild specimens are best maintained alone or with small dither fishes, while captive-raised individuals suit community tanks; consistent feeding brings females into condition.
Breeding Setup
Provide caves or crevices, including small caves that exclude the male so the female has a safe retreat during broodcare. Seriously Fish lists breeding parameters of 23-29 degrees C, pH 5.5-7.0 and hardness of 0-90 ppm, indicating that this species is more adaptable than strict blackwater apistos. It should not be kept with other Apistogramma species.
Spawning Behaviour & Trigger
The female deposits eggs inside a cavity and protects them. In smaller aquaria the male may become aggressive toward the female during breeding and may need to be removed; the species tends toward monogamous pairs rather than large harems.
Egg & Fry Care
The female assumes complete responsibility for protecting the eggs and fry, leading the free-swimming brood while the male defends the surrounding area. No species-specific egg count is published by the consulted sources.
Common Challenges
Male aggression toward the female during breeding is the main concern; providing male-excluding caves and adequate space helps. The species' tolerance of a broad parameter range makes it one of the more accessible apistos to breed. Wikipedia notes that across the genus water conditions affect offspring sex ratios, with warmer water and, in some species, lower pH producing more males, so stable, moderate parameters help yield balanced broods.