Are emperors easy to handle or are they hard.I have kept other large angels like a queen for 2 years,Koran for 2 years and some dwarfs before. but am wondering about this one.Tank Information-72 gallons,Ehiem 2217 filter and a prizm pro 300.so do you think this angel would be ok if i get it at 3-6 inches and if the store owner shows me that it eats prepared foods?