Second part of fish jumping

[small fish]

Saturday a week ago I went to Petco and bought a test kit to test the water of my pond as suggested.  Everything checked out ok.  That day I had a friend working with me in the yard.  I was talking to him about the fish jumping out of the water and what ya'll told me about what might be the problem.  Now I have about 50 mostly small goldfish.  That day I saw 3 or 4 fish jump out of the water.  His thought was if there is a problem why is there not more fish trying to jump out?? This week I have not seen any fish jumping.  May have heard one fish jumping.  ?? Any thoughts here.  Thanks for any help.     


Myra