I have two female Betta introduced into a new tank with a male. (Yeah, some people say "don't keep the male with females", but I have to until I can get a new heater for a tank as it's popped, plus he's not showing any interest in them and he's quite peaceful and they don't seem to show him any aggressiveness.) Anyhow, one of the females, whenever she sees the other, will flair her gills and give chase to the other female, but will give it up and not attack.
So, my question is, is this just because they are in a new territories and they have to get "used" to it etc? They were kept in another tank all three of them and quite comfortably, but here the female is flaring her gills.
Any advice? Thanks :)