My aimara and Mala get along just fine, I've only really seen the aimara show aggression to active swimmers that get too close. I had to remove my pleuro as they were in a deadlock battle. The dorado fairs much better as he is a very fast swimmer and after a few skirmishes I think they somewhat respect each other.
The GATF got his eye injured by the VATF when I first introduced it into the tank when he was about 3" smaller than the VATF. Since then the GATF has grown significantly faster and now thicker than the VATF. The VATF still punks the GATFs all day.. But the comm gets by with enough feeding.
I actually have two dual wave makers that have the airstones positioned underneath for water movement. I already have 7500l an hour of flow rate between my filtration system. The wave makers are positioned on a mid-top level. As you can tell from the pictures, I don't have the dorado and ATFs together. I've tried it in the beginning but I found the dorado to be just too much sass and non stop aggression to all the mid/top swimmers so they are in two different setups.
Finding a brasi dorado that is somewhat peaceful is like hitting monster fish lottery.. If I had a much bigger tank, I would try to comm them if I could actually put a few larger alpha fish in there to disperse aggression. Thinking like an adult large albino silver arowana and tarpon for taking up attention and a nice super red arowana that establishes dominance in the entire tank. Probably would need a 10x4x3 at the minimum to attempt all those big bodies in there. Best of luck to your comm btw, it's looking quite nice.
