Frozen Fish Food - Sick Fish

[jb1997mcd]

Good afternoon,

I do weekly water changes and have my new tanks up and running ( after big move ) for about 4 months now. I have not lost any fish outside of a few I brought home and died within 24hrs.

I bought a pack of the sf frozen fish food at petsmart and fed a piece from this pack for the first time on sunday. On monday I had to euthanize a tetra from my one tank and today it looks like one of my barbs is sick in my other tank.

This frozen food is the only constant I can see in the two tanks.

Any feedback is greatly appreciated.

thanks,
jb