One of my platies died a couple days ago... I dunno of what..I thought it was fish TB but after a few hours of research I dont think so....how long should I wait before adding more fish?
I aggree with chooklet to test your water conditions incase it's related to the death. If your water is fine, try to find the cause of the death(or post a pic here) cus it would be a same to add more of the same fish and find out the disease is very contagious.