What must be provided almost immediately after knifefish fry exhaust their yolk reserves and become free-swimming?

Answer

Live foods like infusoria or microworms

Once free-swimming, the fry require immediate, consistent, high-quality nutrition, usually starting with microscopic organisms like infusoria before they can handle larger prey.

What must be provided almost immediately after knifefish fry exhaust their yolk reserves and become free-swimming?

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