My understanding is whole fish meal is the whole fish while fish meal is the junk left. Check @RD threads he has some real interesting stuff on fish label ingredients.
Wow...that's really disturbing. The primary ingredient in my pellets are fish bones/fins/heads...whats @RD?
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The attached thread isnt the one i was thinking of but they do explain allot. I dont remember everything that was discussed. NLS's ingredients are my favirote just wish they made a softer larger wafer
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https://www.monsterfishkeepers.com/forums/threads/nls-ingredient-change.660821/