Well my experience is that if a pair forms while some cover is very useful it is not nearly as critical as it is for the polygamous species. I could of course be mistaken and welcome correction but my memory of the pair of Nij. i had is they did not do the constant chasing that i see with the polygamous species. Having said that i also see very little chasing with my a. lineta though i do not believe they are pair forming but that is a side topic (with other species i've had it is of course more important that the female can hide when she is not in a breeding mood).