Set up as many tanks as you want to begin your fish growing endeavors. The productivity increases with the number of ponds. Give them mineral supplements along with wheat, soy, and maize. You may sell the fish crates that your production has produced at the point of sale that you will mark on the map.
Price per pool: $20000; 10 fish (seven maize, six soybeans, four wheat, and eight mineral feeds); daily maintenance: $50; hourly cycle: 5; storage of cold fish (in the blue container): 47 crates (1 crate = 100L); production buffer storage: 200L; point of sale price: $500

Thanks to GWENDAL