Congrats on getting them, here is a little info on them.
Uaru(waroo)grow to be 12''(30cm), mainly herbavorous, they are large, generally peaceful cichlids that relish feedings of plant-based materials and do well with other large cichlids of similar size and temparment. Adults may become quite belligerent if they pair up and look to spawn.
Good luck with them and i am looking foward for pics