They need places to hide, and call their own. However, with that many in that small of a.tank, you're probably going to find that they won't survive long. Even if you change around the tank regular so they don't get too territorial. That many cichlids in a 60 gallon tank is going to slowly work its way down to a handful. I'm sure it can be done, but it is going to be a lot of work.
This kind.of.thing is why I wish pet stores would either advise people that these fish get big, and they should only put 2 or 3 in a tank your size. They look cool when they are small. But soon enough, they will start to die off. The stress of the alpha dogs in the tank is going to do them in. They may injure themselves on them rocks as well. They might startle easily and bounce their eyes and stuff off them.edges and corners. My peacock lost an eye this way. Was startled by the convict, and hit its eye on some decor and now it only has one eye. I only have a jewel cichlid left as well from probably the same.number you have now in my 75 gallon. They chased each other to death.