What behavior in Clown Knifefish is often noted as a positive indication that pair bonding is progressing toward spawning?

Answer

Aggressively defending a chosen dark, confined location

Successful reports for Clown Knifefish mention the pair becoming highly protective of a dark, confined space, defending it vigorously against intruders, which is interpreted as a positive sign of bonding.

What behavior in Clown Knifefish is often noted as a positive indication that pair bonding is progressing toward spawning?

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