From Mike at Keystone...

"Yes, they are both Fathead Minnows (Pimephales promelas) but the Tuffies are raised in Arkansas. Because of how they are raised and harvested, they are hardier in the summer. Basically, Tuffies are the thing to stock if you are trying to seed a new pond in the spring, but they are a waste if you are trying to feed a hungry bass pond, because they will both get eaten either way."


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