The 4 that I have are in separate tanks and have the following individual tastes...
Big male...currently eating Hikari brand freeze dried krill,Hikari frozen mysis shrimp, and fluval bug bites pellets(by far his favorite food)
Smaller male eats all of the above but primarily since he takes them well he has Hikari massivore and Northfin carnivore. ..
Larger more green female eats all of the above...
Other female every thing except North fin....
All will eat blood worm but just haven't given them in months...
All will eat raw Shrimp made for human consumption but I have backed off feeding it due to it have a preservatives I'm concerned about..... Sorry if it's TMI.... Just liked answering the question....