Originally Posted by MrVampire181
These are sisters so they'll get along but two would fight.
Oi, I will explain it one last time.
for a sorority tank you need to give them LOTS of space! I am talking about 10 gallon minimum, 20+ to be safe. Plus themore you have the better because two will more then likely not get along. If you have three in there then it will create a pecking order and they will naturally fall in line.
do what you like, your fish might be the exception. But to be safe I would never put them in together without a third and without it being at least 10 gallon. If you do anything different be prepared for torn fins