Hoplisoma caudimaculatum

This species is listed as Least Concern, and that listing is doing a lot of work. The assessment covers the whole Guaporé-Iténez drainage on the Brazil-Bolivia border, which is big enough to keep a widespread fish off the threatened list. The headwaters tell a different story. A 2026 survey of 21 streams in the Rondônia portion of the basin found that almost none still had more than 70% forest cover in their catchments, and the worst sites were under 3%. Canopy cover fell as forest loss rose, and the insect communities shifted toward tolerant generalists.¹ Those small shaded headwater streams are exactly where corydoradines live. A category assigned across an entire drainage says very little about what is happening in any one of them.

The fish you're looking at were bred here in Eugene, Oregon - not collected from the wild. This species still reaches the hobby mostly as wild imports. It doesn't have to.

1. Luiza-Andrade, A. et al. Deforestation impacts on environmental conditions of headwater streams and Ephemeroptera (Insecta) diversity in Southwestern Amazonia. Limnology 27, 293-304 (2026).