My jumbo flowerhorn is having prawns since I have it (almost 4 years so far) but as I mentioned only once or twice per week, sometimes even once of two weeks. The main food is Hikari, Tetra and Tropical pellets and once in a while snails (from my planted tank) as snack food. At the moment my jumbo fish is almost 14 inches and that is why I was wondering to go to prawns.
I appreciate all opinions, it is good to share experience.