TSN are definitely pure predators. They will even stalk prepared foods. Watching them hunt is exciting though. How they gingerly swim to the other fish in the tank, and when one strays to close to it's mouth unsuspecting wham, bye bye fish! Don't let their flat heads and small looking mouths fool you their mouths open up to almost a full circle about 1.5x the width of their heads. Sometimes they can get theirselves into trouble by trying to eat something too large and it becomes lodged in it's mouth. Wait til you can have a larger tank dedicated to one of theses, and enjoy your cichlids in the meantime. My tsn are not skittish at all anymore in their pond. I love to watch them stalk shrimp I throw in. Very fascinating. True you can't pet them like tsn or the hybrids, but they are amazing predators and are simply gorgeous with their patterns.