Undoubtedly.
This move was indeed the Thunderous Nine Heavens skill of the Darknight Thunder Dragon, which had achieved great success upon its first use, paralyzing nearly half of the fish swarm, freezing them in place.
With just this one move, a massive amount of damage erupted, and the fish swarm went into a frenzy. As soon as the paralysis effect wore off, they all swarmed towards the Darknight Thunder Dragon, showing no fear of its dragon might. The fish monsters, with their sharp teeth, bit towards the dragon's body in a mad frenzy.
But.
The Darknight Thunder Dragon would not succumb so easily; it fully showcased the potential of a loach, squirming through the school of fish effortlessly, dodging every attack from the fish monsters.