I am curious about this as I have heard they are much like having 2 male Bettas in a tank together. However I see 10 of them in a tank sometimes at pet stores and no signs of aggression at all. Are there certain types that get along and certain types that you can't mix or have more than 1 of?Hopefully you got a Male/Female pair....the males will fight all the time
Those are the best in my opinion. There are several types of red. Is this the kind that have the pheasant colored body.Red Dwarf. I had one from my first little tank and I liked it a lot , so when I got the new tank I just transferred that one over and then bought a new one later on.