Originally Posted by Foofykitty
I have a female and have been thinking of getting a larger tank and some more females, so just wondering why you say you can't have them in less than a 10 gallon? And while I'm picking your brain, how many do you recommend having together?
They need to have room to get away from each other so the tank needs to have space, plenty of plants & hidey holes. You can have more than one female but there will be aggression towards each other especially in the beginning when they're establishing a hierarchy. If the tank isn't big enough the aggression will be worse. A rule of thumb, which has flaws, is that you need a minimum of a gallon per inch of fish BUT that rule doesn't take into consideration bio load of the fish, aggression of the fish, width, etc. I have 3 female Bettas in a 46g, soon to add a 4th & soon after that a 5th. As it stands right now, Rosie will periodically chase Violet & because of the size of my tank, the plants & deco's, Violet can easily escape, stay out of her sight & feel safe. I also have 2 males in individual 10g tanks & let me tell you it has made a HUGE difference in their behavior, they were previously in 1g tanks because of my lack of knowledge & experience. I won't keep another Betta in anything less than a 10g long term ever again. I love watching my boys swimming around, being able to really stretch & strut themselves, I feel better & I know they are happier & healthier. But thats me, many people disagree.