Isbrueckerichthys alipionis

Isbrueckerichthys alipionis is named in honour of Brazilian ichthyologist Alípio de Miranda Ribeiro, one of the founding figures of Brazilian freshwater ichthyology. The genus Isbrueckerichthys honours Dutch ichthyologist Isaäc Isbrücker, an authority on Loricariidae. The species is described from the upper Paraná River drainage of Brazil — a major river system flowing through São Paulo, Paraná, and Mato Grosso do Sul states, and one of the most biodiverse freshwater systems in South America outside the Amazon.

In its natural habitat, I. alipionis inhabits clear, flowing tributaries of the upper Paraná with rocky and gravelly substrates. The upper Paraná and its headwater tributaries are moderately hard, well-oxygenated, and relatively clear — conditions shaped by the crystalline basement rock of the Paraná plateau. The species is a periphyton and biofilm grazer in the classic loricariid mould, using its adhesive disc to maintain position and its rasping mouthparts to harvest algae from hard surfaces.

For aquarists, Isbrueckerichthys alipionis is the pinnacle collector's piece in this catalogue — a named-honour species from a scientifically significant drainage, essentially never available in the mainstream trade, and requiring specific water conditions that reward the dedicated loricariid specialist. Its slender, elegantly patterned body and the historical prestige of the names it carries make it the ultimate conversation piece for the serious catfish collection.

Water: Moderately soft to hard at pH 6.5–7.5 and 18–24°C; clear, well-oxygenated, moderate flow replicating upper Paraná conditions. Tank: 80 litres minimum with smooth rocks, driftwood, and moderate current. Feeding: Biofilm and periphyton on rocks primary; algae wafers and blanched vegetables supplement. Breeding: Not documented in captivity. Compatibility: Peaceful with all moderate-water, similar-sized community species from the Paraná system.