/vt/ - Virtual Youtubers

Size aside, the pistol shrimp kills the goby because if you put them at the same time, they fight for territory. If you put the shrimp first, it becomes territorial & treats the goby as an invader.
That's why you put the goby first, wait for few days for the goby to establish its home, then adds the shrimp. The now in alien world shrimp will more willing to perform symbiotic relationship with the less territorial goby.
Yeah, I'll never have this kind of conversation with a girl.