Tubifex were going fast.
The spring mating began.
A female corydoras adolfoi ‘gil-gu-gi’ finding the place where she stick her egg.
And her partner ‘pretty’ following her.
In my opinion, every female cory’s egg place preference is little different.
She prefer behind the weed.
The other female fish prefer inside of coconut shelter.
And the others prefer the glass or rocks.
Even some female fish ‘whitish’ occasionally lose her eggs on the sand.
Maybe it depends on the competence.
So sometimes I identified the egg at once.
Corydoras with a tubifex ball.
Corydoras faces when they eat tubifex!