A coffee grinder sounds like a great idea! I've tried smashing AM with a hammer in a plastic bag and a food chopper. I wasn't happy with either of my methods, that food is really hard.

What I didn't like about making the food smaller is that it no longer floats. I bought some tropical fish flake food (Tetra Min) to feed the smallest minnow babies. They loved it and it floats so I could still watch them eat. I only feed occasionally so a small jar goes a long way. The hydrated food works well too but my baby minnows seemed to prefer the Tetra Min.


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