I don't think two male Sajica would work, there too aggressive as they get older.
In a 125 or 150 I think you would be over stocked with a vieja or Cincelichthys added to your planned stock, personally I think a 180 gal min for either
In a 125 or 150 I think you would be over stocked with a vieja or Cincelichthys added to your planned stock, personally I think a 180 gal min for either