Meh. We have a midas in my lab...she is in a 75 all by herself...anything that went in there would probably get killed seeing as how she bites you constantly while you clean the tank. Im not really a fan. Too much water for only one fish.
I would go with a pair of Honduran Jags from rapps. Or a pair of Trimacs. Get 7 or so and let them pair off. The jags he has now are F1 and they are some of the best jags I have seen. If I did not already have a pair I would snatch some up in a min.