I have my females in with only other females a total of 6 in a 10 gallon tank. You could always do that. I have had a single male in with Fancy Tail Guppys, Neon Tetras, Glofish, Platys, Swordtails, and Otos, and Corys and never had a problem. I also have 5 Females right now in a 44 gallon with the same types as the above as well as Harliquin Rasboras.
Keeping fish its not a hobby it is a passion!
55 gallon, 44 gallon, one 20 gallon tank, three 10 gallon tanks, and a 2.5 gallon all with real plants
I have MTS and there is no cure.