Hello everyone, I just acquired two Herotilapia multispinosa or Rainbow cichlids and was wondering are they known to be aggressive towards each other? They are in a 20g long for QT. THere are two territories for each of them, but the larger one(4'') is always beating up the smaller one(3-3.5''). The smaller one does have some old wounds from when they were at the LFS. What's the best thing to do?