Originally Posted by ROSSELLA1
I've got one female in a 10 gallon and I'm thinking about starting a sorority. I've read the sticky and it says to add the least aggressive ones first. My question is: How does one know which ones are the least aggressive?
Just see how it acts on its own, like, if it tries to bite you when you're feeding, then it's pretty agressive. And, for being a female, if it flares at you a lot, thennnn its aggressive. If it always looks friendly towards you, then you've got yourself a pretty mellow fish :). My girl i had (who was semi-aggressive I guess) was already in my planted 10 gal when i started my sorority, but, I had a clear breeder thing and I distracted her with a new female betta (who was super mellow) and added the others, who were mellow and half aggressive, then when she went to check them out, I let the other one out.
That's just the method I used. Because with the new ones, i didn't really know if they were super mellow or not.