A few youtube clips I did myself in my Corydoras-days. Some showing quite rare species.

Corydoras loretoensis breeding

Corydoras napoensis breeding

Corydoras gracilis breeding part 1

Corydoras gracilis breeding part 2

Corydoras C115/116 breeding

Corydoras CW22 males squabbling

Corydoras baderi breeding part 1

Corydoras baderi breeding part 2

Corydoras baderi breeding part 3

Scleromystax prionotos breeding