Originally Posted by Pekemom
There's alot to learn, and from what I understand, bettas don't get 'lonely' - or experience 'boredom.' Once you've got things under control, you can add to the tank at a later time.
I agree. So long as you interact with your bettas, they will not be lonely. Bettas are rather curious, almost to the point of being fearless. A single betta by itself is just fine, and may actually do better than in a group. Try to upgrade her to at least a 2 gallon heated tank. Filtering is up to you, but I personally like it, since it cuts down on the sheer number of water changes needed. Just poke your face at her and let her see you right before you feed her, and you'll quickly build up your relationship with her so that she begins dancing with joy (with slight overtones of begging) every time you walk into the room.
Once you get the basics of betta keeping down, then you can start entertaining thoughts of a sorority tank. I want to start one, but the only tank that I have that would be big enough is occupied by goldfish at the moment.
That said, when you do get around to it, I recommend a ten gallon tank or larger (always go for long rather than high tanks) and get odd number groups of females. A 10 gallon is really only big enough for three, and it has to be heavily planted and there has to be a lot of hiding spots, so a 20 gallon is better suited. Try to introduce them to the tank at about the same time, so no single betta feels like she has immediate dominance over the others. There will be fin-nipping, but as long as it doesn't turn into outright aggression and fighting, you'll be alright. There is a great thread stickied to the top of this sub-forum all about sorority tanks that would be great to read.