worms + crickets... i fed my aro anything I found and it ate it. My friend use to throw his unwanted fish into my tank without me knowing and my aro swallowed it.
Ya I had good results feeding 4"ers broken Hikari cichlid gold large size. Bought the mini pellets for them and they would not eat it. I think the larger broken pellets absorb water quicker making them softer.
The freeze dried bloodworm is still a good food for that size. You can also go with a freeze dried shrimp or krill as not as it is soft and has not sharp points.