You need to deliver water and corn, and you end up as a product for sale and the fish live trout for further processing, namely for obtaining eggs:

THE PRODUCTION OF EGGS V 1.0

Bring water to the pool. Corn is unloaded into a small bunker, then immediately run fish production.

So that your products are not spoiled, you can use additional modes – warehouse with cooling for the fish:

STORAGE OF FISH V 1.0