List of kept species

The following lists of populations of rivulid species includes all populations reported by participants in this conservation program as of August 1, 2025.

Rivulus cylindraceus 'Al Castro'

Rivulus cylindraceus 'C30'

Rivulus cylindraceus 'Cascada de Soroa'

Rivulus cylindraceus 'Las Terrazas CU 2017'

Simpsonichthys parallelus 'Rio Jacuba II BIF BR 2011-08'

Simpsonichthys parallelus 'Rio Jacuba'

Simpsonichthys punctulatus 'Formosa, Goiás NP 2007'

Simpsonichthys santanae 'Ribeirão de Santana NP 2007'

Simpsonichthys zonatus 'Garapuava'

Spectrolebias brousseaui 'BOL-HV 2015-14'

Spectrolebias brousseaui 'El Tinto BFB 2012-08'

Spectrolebias brousseaui 'Los Porticos BO 2025-03'

Spectrolebias brousseaui 'Río Quimome BPBV 2014-05'

Spectrolebias chacoensis 'Ibibobo IV BBP 2018-07'

Spectrolebias chacoensis 'PYEH 2006-15'

Spectrolebias costai 'Rio Formoso HVP 2017-18'