My small guy lived fine with larger cichlids until I sold him. My pair now live alone except for 4 silver dollars. So I don't have that much insight as far as tankmates for adults. I had a 14" johanna pike for years that also lived fine with similarly large cichlids, in a big tank.
Anything that can fit in the mouth is 100% gone. The small pike in that video ate all of those danios. And my large pair ate a group of 2-3" silver dollars that were just small enough to eat. These newer SD's are more like 4-6" and they don't bother them much.
I would say large SA fish like flagtails, SD's, Severums, that sort of thing, would be good. 180 should be a good size tank for them.
Anything that can fit in the mouth is 100% gone. The small pike in that video ate all of those danios. And my large pair ate a group of 2-3" silver dollars that were just small enough to eat. These newer SD's are more like 4-6" and they don't bother them much.
I would say large SA fish like flagtails, SD's, Severums, that sort of thing, would be good. 180 should be a good size tank for them.