Michael’s Mutts pair (1 male/1 female) requires at least a 10g tank, and is very tolerant of changing tank conditions. Plants should be hardy varieties such as Java Fern and Java Moss that can handle the increased hardness in the tank. Other peaceful fish would make good tank mates.
With Michael’s Mutts all male pack, the males are smaller in size, have brighter coloration, along with a bigger tail fin, and pointed anal fin. The all male pack is great if you do not what to have to deal with fry. They will be colorful, active fish that are beautiful to watch gently swimming in their tank.