The more I thought about the trets, the more I realized I would not try this. They do have a reputation for killing everything in the tank when they spawn...including each other when they are in a species tank.
If I were going to try trets again, I would probably try a species tank with 1m:15 females in a 75G and see how that went before I tried replacing some of the females with other species.
If I were going to try trets again, I would probably try a species tank with 1m:15 females in a 75G and see how that went before I tried replacing some of the females with other species.