Description
Early signs are easy to miss on a fish, and late treatment rarely works. This guide organizes the most common freshwater illnesses by what you see first: spots, fin damage, bloating, color loss, clamped fins, gasping or unusual swimming. Each entry explains likely causes, the water conditions that make it worse, and the general treatment approach, with clear notes on when to seek advice from an aquatic veterinarian or an experienced retailer. A quarantine section covers tank setup, observation periods for new arrivals and a printable treatment log. Educational content that supports, and does not replace, professional advice.
