The character of the dogs in question are more important then the sex in my opinion.
Not a big Cesar Millan fan, but in regards to picking dogs to house together, I think he is spot on when saying 'to look for 2 dogs with different energy levels'.
Don't get 2 dogs (either male or female) that are both bossy, easily irritated… Try to get a more 'laid back' dog as your second one if the one you allready have isn't the easiest. Problem is seeing what dog has what character. That can seem really different at the breeders house/pound then it actually is. If you are not entirly sure if they match ok, try to make a deal that you can take the dog home with you for a trail period. Then the dog still won't show his real character cause he will be still a bit unsure cause of all the changes, but you will get a good indication on how he will evolve later on.
It's allways a bit of a gamble, but use your brains and feelings and it will most likely turn out to be ok. 
I think that is a well said Voodoo, and it will work I think.
(I don't like Cesar at all, because his vision of correction is totally opposite of our vision of using dog bodylanguages and kalming signs)
Our Buana is more lazy, but strict. He has to know what is going on and is a bit more adult like.
Chaffie is very playful, when he does someting naughty or better said, he wants to go do simething naughty he wiggles that tail and will be yodeling… he won't come to the point of doing the naughty thing because we all, including Buana are totally keep laughing and that is more fun than doing the bad thing haha
On those points they are totally different but on all the other points they are exactly the same!
They just know how to live as a family and they just do 
If they would keep irritating eachother, as the family dad or mom, you would tell then no right, just the same as with kids.
So also that is trainable, when they know where they stand, they know how to live a great life.
I agree with Voodoo, the personalities are important but I go along with the opposite sex as well (I've seen plenty of bitches together and they have all been BITCHES). And hopefully your breeder will allow a trial period.
The other suggestion I might make is not to get one that is way younger than your current. An older dog does not always tolerate a very young pup after being king/queen of the house for many years. Though again the personality makes a difference too.
mmmmmmmmmmmmmmm thank you for your reply. the dog we have is 22months so will be just over 2 yrs when puppy arrives.he is the kindest dog you will ever meet, so gentle and loving. He has been in contact with puppies from the last litter and gets on realy well. my breeder does take care to match personalities. the only thing with trials is that you get stuck in the ahhhhhh factor and fall in love lol…
Or a Rottweiler who, if stable, puts up with massive abuse by smaller dogs. Etc.
That would be a great answer for people thinking of getting a basenji!
We have been so abused & used.
LOL poor Connor was chewed on like yak meat. He would play with a basenji hanging on either side of his neck and try to pretend he wasn't hauling 50 pounds. He actually would have scabs sometimes when they got too rough. The toy poodle we rescued was a jerk and would charge him and Connor would practically LAUGH as he ran pretending to be afraid. Man I miss the guy. I know i can't complain– 12 1/2 is ancient for a Rottie. At least he got to socialize Cara to big dogs her first couple of months here.
I have a nearly 3 yr old PB Basenji female, and a 3 yr. 6 mo. old Basenji mix female. I think it works well because they are not both PB. There never has been a question of dominance, Shaye, the PB basenji, has always been the dominant dog, and Gemma, the mix, though bigger, always follows her lead. The one difference is that when they are play-fighting, occasionally it occurs to Shaye that Gemma has bigger teeth, and will jump on one of us to stop the play. Never has it escalated to the real thing. If both were purebred, perhaps the question of dominance would come up, because the B bitches always have to rule the roost, and with two, there could be a problem, just IMO.
Shaye, I suspect it has much more to do with the individuals than if one is mixed or not.
I've had two same sex (females) and two opposite sex, and it worked for me, although my nine year old girl thought the two year old boy we adopted after her sixteen year old female companion died was totally unnecessary and hated him on sight. She learned to tolerate him (read: stopped trying to kill him!) and over a few years he actually became dominant as she aged. From her point of view, however, he wasn't a "friend" and in hindsight I believe she would have preferred to be an only dog.
Be aware that your relationship is different in a multiple dog family. Especially if you introduce a puppy, as the pup will tend to look to the other dog for company and will typically not rely on you so much. I think the closest possible relationship with a dog is usually achieved when you have only one….
Hi Erica Ruth,
how exciting to be getting another Basenji, we have two and it's great to see the play between the two of them. Malaika loves other dogs so much that we felt it would be unfair for her to be an only dog
Reading through the threads on the forum and by talking to other people we came to the conclusion that the best chance of the dogs getting on was to get the opposite sex. Like you we couldn't consider keeping the dogs seperate and so our second Basenji was male. The pair of them get on well together although they do fight occasionaly.
Good luck with your new addition, i look foward to hearing all about it
I do have to say that our female is much easier to handle than the male, i think for a Basenji she is particularly good.
Erica, reading through the previous threads I'm back to wondering why you've decided that Wingco's companion must be a Basenji?
I have two males together (yep, both unaltered!), a flat coated retriever and a basenji. I was going back and forth with the same things, but I'm a male person. My flat is the oldest, but he is a very soft boy to work around. He has never gone into a fight, because when another dog is growling/getting into it, he backs off immediatly. So I hardly think it's going to be any problems with male/male here. Others might, every dog is different.
