No you DEFINITELY want to keep a pair, if not a 1.2, I have a champ enchi x pied pairing this season that I am very hopeful for. Locks are looking good though.
As for the breeding part this is how I do it, works for me so..... Males see up to 8 females a year (doesn't happen often I try to limit to 6, but depending on planned projects.....)
I feed Wednesdays, clean and pair to female 1 Friday, pair to female 2 Sunday, separate Tuesday, feed Wednesday and so on