Only properly-trained fish health professionals should perform diagnostic procedures.  A timely and accurate diagnosis is imperative in order to make the proper therapeutic recommendations.  Therapeutic agents should not be provided to fish prior to a proper diagnosis being made.

When you seek diagnostic assistance, some of the steps involved in the diagnostic procedures include:  (a) taking a history, (b) physical examination of the fish, (c) biopsy and/or (d) necropsy of fish.  The following pages provide guidelines regarding each of these procedures.