I picked up one of these over the summer to put in my 125 with geo ipoangensis, rotkeil, sd and plecos. Once in a while, usually when the wife is watching chick shows, I'll try to learn more about them but info isn't very clear. Co specific aggression is agreed upon to be high but agrressipn to other species is all over the map. Are they aggressive for an earthetear or aggressive in general? I'm having a heard time deciphering what they are being compared to when I'm reading up on them.