I had a Midas and a Purple Parrot in a 55 gallon planing to upgrade. I saw them both digging at a corner of the tank and biting any other fish who dare came by. I was pretty new to breeding so I wasnt aware of the behavior. I ended up spliting them apart since they were being agressive. I could have ended up with a Hybrid of Midas and Parrot, yet I splited them apart! They worked together to fend of any fish. That was a couple of years ago, we ended up giving the Midas away and the Parrot recently died because of a power outage
I regret ever since!