They just started this yesterday, and I don’t know why. Two of them are doing it, the others are not. Should I be concerned?
I’m not aware of the gender, but there are eight of them. The tank is a 45 gallon with 3 opaline gourmai, 4 cories, one bristlenose pleco, and the aforementioned mollies.LynnwoodFishDad said:Are the two males? It may be tied to mating or territory. How big is the tank and how stocked is it?