NOT AT ALL a Trimac is one of the species used to hybridize to the Flowerhorn. They are somewhat rare now to find a true trimac with all of the crossbreeding. They get large and mean and I would think you should put them in at least a 90g by themselves. There is a ton of info on this subject on MFK search "Trimac" both of the questions you just asked will be answered in much greater detail.