Hi, I am new here and finally i've figured out how to make a thread. In about a year or more i will have a 3 meter long, 2 meter wide, 1 meter high tank. I want to keep a dorado but i don't know **** about fishkeeping as my dad takes care of my fish when i keep them. Can you people suggest a begginer predatory fish to keep before i am ready for a dorado?