Question: is hole in the head contagious?
Answer: How does 'hole-in-the-head-disease' occur? The diseases occurs mainly in discus and cichlid spe- cies but it can affect other species such as gouramis. The disease is caused by a microscopic parasite cal- led HEXAMITA (often referred to as Octomitus and Spironucleus). The disease is contagious and infec- tious.