Junior Tetra - Hyphessobrycon robustulus : Complete Fish Profile & Care Guide

Introduction

The Junior Tetra (Hyphessobrycon robustulus) stands as a distinguished characin, though not frequently encountered in the freshwater aquarium domain. Esteemed for its understated elegance and poised charm, this species is hardy and naturally forms shoals, ideally flourishing in assemblies of six individuals or more. Their inherently gentle nature makes them ideal inhabitants for diverse community tanks. However, given their particular sensitivity to water conditions, they might pose a challenge for novice aquarium enthusiasts.

For optimal well-being, it's recommended to house Junior Tetras in groups of no less than eight alongside other shoaling fish. This not only enhances the aesthetic appeal of the aquarium but also reinforces the fish's natural behaviour. While occasional intraspecific conflicts might arise, ensuring sufficient hiding spots and visual obstructions can alleviate any potential stress or injury.

Regarding co-inhabitants, prioritizing species of comparable size and disposition is key. Potential companions might encompass other diminutive Tetras, Hatchetfish, Pencilfish, certain non-aggressive Cichlids, Corydoras Catfish, and select Loaches. Given their predilection for softer aquatic environments, it's imperative to align their habitat with tankmates of similar requirements. It's prudent to preclude their cohabitation with languid, long-finned species or larger, potentially predatory fish.

A conducive habitat for Junior Tetras would encapsulate a densely vegetated aquarium, accentuated with a dark substrate, floating flora, intricate driftwood, and a layer of dried leaves. Mild air-driven sponge filters can suffice for filtration, and they can tolerate some water movement. Notably, their silvery iridescent bodies are complemented by the contrasting red fins in males and yellow fins in females.