I have always looked at FA as a food to be utilized if possible. In my experiences Israeli Carp, KOI and Tad Poles consume FA. I have seen Blue Gills eat FA when they were an inch long but not when they were any bigger then that. I took this picture just yesterday of new hatched Tad Poles eating the heart out of FA. A person on the forum said where he had lots of Golden Shiners he didn't have FA, so I put GSH in my pond. I've never seen them eat FA but perhaps they do.