Diagnostic tools, symptoms, ailments, treatments and water quality. Written by a veterinarian in fish health. Dr. Erik Johnson.

Diagnosis and treatment of disorders.

Common and not so common ailments are included, plus problems caused by incorrect water chemistry.

Checklist, primary symptoms, afflictions and remedies.

List of common ailments and recommended treatments.

Prevention, diagnosis, and treatment of common ailments.

Ornamental fish disease diagnosis and treatment.

Diagnosis of diseases and suggested treatments. Includes a section for the most common problems.

Index of various disorders, symptom and diagnostics chart and recommended treatments.

Koi health and disease treatment.

Article on osmosis and osmotic stress.

Guide to small and microscopic pond life, many of which can be found in the home aquaria, including Hydra and Protozoa.

Forum, diagnostic quiz, diagrams of common fish illness and treatment suggestions.