I currently have a wolf fish that was sold to me as a black and I believe it is a mala. I have 75, 55,29g tanks at the moment but I'm open to going as large as 180. In the 55 g I currently have an odoe pike and 2 hujeta gars all about 5 inches. My plan was to grown them up and add them to my wolf tank and eventually upgrade. My other questions is that I have an opportunity to buy what is called a rainbow high fin wolf? Would that serve as a better tank mate for my other fish? The first pixtures I'll add are of my current fish and the last will be the "rainbow". And identification help or knowledge would be great. Thanks