You should tell your friend to consider what plants he wants to keep before deciding. For example, if all he wants to get is Java Ferns, Anubias etc, then no need for any base ferts at all. If he is aiming for plants (Crypts, Echinodorus etc) that require a richer base fert, then more consideration can be made.
In the end, it all boils down to plant choice and how adventurous he is!
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