Symptoms and Treatment of Hole-in-the-Head Disease in Blood Parrot Cichlids

1 Symptoms

The disease presents in two distinct patterns depending on what is driving it.

Nutritional deficiency: when a blood parrot lacks essential nutrients, its subcutaneous tissue begins to break down into lumps, especially around the cartilage of the head. The early stage is easy to miss, but as the condition advances the decomposed material leaks out, penetrating the surrounding tissue and seeping from the wound. At that point you can see holes of varying size scattered around the head and eyes, and these openings keep growing over time.

Poor water quality: if bacteria in the water are the cause, the fish loses its appetite and twitches or shudders repeatedly, looking visibly restless. Small white bumps appear where the bacteria take hold, and then the area swells. As it progresses the swollen spot ruptures and discharges a large amount of fluid; in severe cases raw flesh is exposed, and the head holes widen as the decay spreads.

2 Treatment

As soon as you spot the symptoms, move the affected fish into a separate hospital tank and disinfect the original aquarium to stop the infection from reaching healthy fish. Give the sick fish a bath in a 2–3% table-salt solution. For more serious cases, use a cotton swab to squeeze the pus out of the holes, then pack the cavities with an antibacterial yellow powder using a small spoon, and finally seal the wounds with erythromycin ointment before returning the fish to the water.

Adding magnesium sulfate and calcium carbonate to the recovery tank can speed healing and help prevent a recurrence. One caution: early hole-in-the-head disease is hard to distinguish from saprolegnia (water mold), so observe the fish carefully and confirm the actual condition before you begin treatment.