[Dorothee Jöllenbeck-Pfeffel]

Yes, that is the same what I have observed … More aggressive towards each other …and much more shy towards observation.
But in my case the male seems always to be in the back of the tank, perhaps “busy” and the females are the only ones who show themselves in the front, perhaps he chases them towards the front part of the tank….
Concerning the offspring till now survived about 25 of them eventual parental aggression ….