I recently purchased 4 T Diboises, two have died from what I assume is bloat, will my other fish die

Would love to see this one - sounds very interesting. Bloat typically is not contageous (I think), but just in case - here is a disease chart for you for your references.

Aquarium Fish Stress & Disease Identification & Treatment

http://www.fishdeals.com/fish_diseases/s.

Best of luck to you, and if you could post some pics here or in email to me of your setup - I would be more than happy to help more if I can.

http://www.liveaquaria.com/product/prod_.

They're an African cichlid that are herbivores. I was told when I bought mine(African cichlid specialty store), that they need to be on a low protein diet, because they were prone to bloat. Recommended I feed them Spirulina flakes for their main staple. Try switching to that if you're not feeding that.