Welcome to you and Tank - we have a sheep named Tank! He's called that because he refuses to move when he's standing in our way! How did your boy get his name?
Welcome and so sorry to hear about the health issues of your two B's…. Thank you for opening up your home to them... And Thank Goodness we now have DNA tests for Fanconi so that no Basenji ever has to suffer with this horrible affliction.
Bungwa has a very dry mouth and I only managed to get a very tiny white patch on the test card but it was still sufficient to do the test with that. It only turns white when it's dry - the instructions are quite explicit. Of course as Pat says it could be a bad test form.