As you may know the [Underlight Angler]  has a trait for every legion fish-pool, that will ocasionally fish the complete pool at once.
The problem is, you will not simply loot the complete content of the pool, but rather a lootable gameobject appears.

The Question is how do i get the fishbot to loot that gameobject?

in general settings add gameobject name to loot list

Was helpful, thanks