i have 5 10inch lent pikes and they are something else.they dont like anyone but never touch each other.i had them in my 300 and they beat up my lei aro,black aro,my 2 orange pikes(the weird thing is that i had the 2 orange pikes and 5 lents in my 220 and they got along fine bc the orange were in there first,i put the lents in the 300 and a few weeks later put the orange in there and they were beat up in 10 minutes)and ngt.now theyre in a 110 by themselves.these fish are mean but awesome looking with a ton of personality.