I currently have 3 Belly Crawler pikes in my 75 gallon and 4 Angels. I know this is a risky combo but inheritted the pikes from a friend, but luckly enough there has been no problems yet. They have been together for 6 months now, but my problem is that the pikes are slowly picking off the tiger barbs I have in there to fill out the tank and bit more. I was wondering if there would be any other type of fish I could put in there to make the tank look a bit more active? I did consider some more new world cichlids, like severums or firemouths, but I think there will be some aggression problems then. It seems that the pikes don't bother the angels because angels tend ot be less territiorial unless they are breeding.