You're training them. Or taming them? I don't have fish on me right now, but...

[he trails off, clearly and briefly distracted; he's edging up and around the nest he spotted. There's a distinct bleck as he shoves through a gap and Creepvine leaves slap him in the face, and then he's clear.]

Crowded down here. How long did it take before the Stalker started responding like that?