Aggressive Molly behavior

[Sublimer]

So I bought some feelers for my 20gal long tank which I'm converting to freshwater. It's one red wag molly (sex tbd), one mostly black Dalmatian molly (the biggest and a female) and one beautiful light orange balloon molly (male). They all like the tank and everything but I've noticed that the red wag gets chased by the other 2. Is this normal behavior or should I add another red wag or 2? The Dalmatian is the primary instigator so the balloon just plays along I guess

 

[Zimmanski]

So I bought some feelers for my 20gal long tank which I'm converting to freshwater. It's one red wag molly (sex tbd), one mostly black Dalmatian molly (the biggest and a female) and one beautiful light orange balloon molly (male). They all like the tank and everything but I've noticed that the red wag gets chased by the other 2. Is this normal behavior or should I add another red wag or 2? The Dalmatian is the primary instigator so the balloon just plays along I guess

Are you positive of the sexes? male to female "aggression" can be fairly common, thats why the recomended ratio of m to f in livebearers is 1m:2f or 1m:3f. If it really is a female chasing a male then im really not sure why the would be doing it, a 20 long should be plenty of space for them.