very true. i got rid of the 4 dats that were 3-4 inches cause they never stayed stable and constantly chased each other. i kept my 2.5" NTT.(the one that has the 3 thinbars on the body so correct me if i am wrong) he was always stable.TCZeli;2683586; said:Usually Dats will not be aggressive with other Dats if there is a big enough size difference. It is when Dats are closer to the same size, when the problems could start.