hello =] I currently have 3 lil umbee's when I had 6 in total 3 died after the night I got it when I went to bed. The thing is...I got 1 umbee that is slightly bigger than the 2nd largest umbee of the 3 and I have this lil guy...but my questions is about his aggression towards the others...and I know that they dont go too well together of the same species.Its showing more colorations than the rest and is growing fast and taller.I guess its impossible to sex them at this tiny size but what do you think would the possibility of the bigger umbee which is stockier and taller than the rest be a male? I can take pics but I have to do that later since its getting late and stuff over here and all the tank lights are all off already.The bigger one is about maybe an inch long so not really anything can be identify at this size.From what im hearing from others is that females tend to be more aggressive towards the males and later on killing the male thus making them harder to find.Is this just a show of dominance? or a male behavior?