Hole in the Head

As the name suggests, the fish develop small pits mainly in the region of the head. The
holes are usually white in color and have a yellowish mucous trailing from them. The fish
become listless, lose color and stop feeding. Hole in the head disease is cause by protozoa
and is usually a secondary infection. Low levels of the protozoa that causes hole in the
head disease live within the fish, and poor water quality and/or poor diet leads to the
infection. The fish should be isolated in a quarantine aquarium and then treated. Direct
injections or medicated food are some ways to treat the fish.