I have one female CT Betta. She is in a 1.5 gallon tank with a filter for 1-3 gallons. She had just moved into her new tank yesterday, but i have had her for three weeks in a much smaller tank. And she has a castle in it that she adores. I was just wondering that if i should get another female CT in there with her, but I am afraid she will not like the new comer in her new tank and messing with her castle. Should i add another Betta with her or will she get mad? And is her tank to small? I will post pictures asap.