Spotted Headstander Care Guide - Aquarium Setup, Diet & Breeding

The Spotted Headstander is a distinctive, laterally compressed characin with a gently arched back and a pointed head. Its silvery to golden-brown body is marked with rows of dark spots, while a darker stripe or series of markings along the side helps break up its outline among plants and submerged branches. The fins are generally translucent, with subtle darker markings that become more noticeable when the fish is settled and displaying.

Spotted Headstanders are native to tropical South America, occurring in the Amazon, Orinoco and Essequibo drainage systems. They inhabit slow-moving forest streams, tributaries and flooded areas with warm, soft water and abundant submerged vegetation.

Allow at least 100 litres for a small group, with a footprint of around 90 by 35 cm or larger; a longer aquarium is preferable because these active shoaling fish use the middle and lower levels. Use a fine sand or smooth-gravel substrate with driftwood, roots, rocks and plenty of hardy plants, leaving open swimming space among shaded areas. Gentle-to-moderate circulation, good oxygenation and subdued lighting replicate the character of their forest-stream habitat, while a secure cover prevents startled fish from jumping.

Up to about 10 cm (4 in) in total length. Females are usually slightly deeper-bodied and may be marginally larger than males, particularly when carrying eggs.

In nature, Spotted Headstanders browse over surfaces for algae, aufwuchs, small aquatic invertebrates and other organic material. Offer a varied diet of quality flakes or small sinking pellets alongside blanched spinach, algae-based foods and small frozen or live foods such as daphnia, mosquito larvae and brine shrimp. Several modest meals help ensure that every fish receives food without excessive competition.

Spotted Headstanders are generally peaceful and suit a calm community aquarium when kept in an appropriately sized group. Good companions include peaceful tetras, pencilfish, small rasboras, peaceful dwarf cichlids, Corydoras and other similarly sized, non-aggressive South American fish. Avoid large predatory species, boisterous tankmates and persistent fin-nippers, as these can cause the headstanders to become withdrawn or outcompeted for food.

Spotted Headstanders are egg-scatterers and are not commonly bred in home aquariums. A separate breeding aquarium with soft, slightly acidic water, gentle flow and fine-leaved plants or spawning mops can be used for a group of conditioned adults. They scatter adhesive eggs among the vegetation, after which the adults should be removed because they may eat the eggs. The eggs generally hatch within a few days, and the tiny fry require infusoria or another suitably fine first food before progressing to newly hatched baby brine shrimp.

Sexual differences are subtle. Mature females tend to have a fuller, broader abdomen, while males are usually slimmer; males may also appear slightly more streamlined when viewed from above.