I have a 2.1 group of Emerald swifts in a 20 gallon long tank. I also have a male by himself in a 20 gallon long. They are doing fine together, and the person I got them from kept them like that. I just got a used 55 gallon tank and am goin to put the 2.1 group in it and was wondering if I should try to put the lone male in there with them as well? That would make 3 males and 1 female. Any thoughts? Should I put the lone male in with the others in the 55 gallon tank?
P.S. As a side note, the second male of the 2.1 group is smaller and not as bright as the "dominant" male" of the group. While the lone male is just as brightly colored, though slightly smaler.



