FCRSOFT
Knowledge Center
Practical guides on FCR and feed management. Every guide links to the matching calculator and FCRSOFT solution.
See the system that does this automaticallyOpen the live demoFCR guides
What Is FCR?
What is FCR (feed conversion ratio), how is it calculated and how do economic and biological FCR differ? Formula, worked example and ways to track FCR.
Read the guideGuideWhat Should FCR Be in Fish?
Typical FCR ranges for sea bass, sea bream, trout, salmon, tilapia, shrimp and carp; the factors that affect FCR and how to interpret your own value.
Read the guideGuideWhy Does FCR Rise in Fish?
Overfeeding, temperature, low oxygen, stocking density, disease, feed quality, measurement error and stress: the 8 most common causes of rising FCR and how to fix them.
Read the guideGuideHow to Improve FCR
Ways to lower FCR with feeding tables, temperature-based feeding, appetite monitoring, the right pellet size, grading, oxygen management, feed storage and data-driven tracking.
Read the guideFCR by species
What Should FCR Be for European Seabass?
Typical FCR range in European Seabass farming, suitable water temperature, oxygen, harvest weight and production time. Calculate and improve your FCR.
Read the guideGuideWhat Should FCR Be for Gilthead Seabream?
Typical FCR range in Gilthead Seabream farming, suitable water temperature, oxygen, harvest weight and production time. Calculate and improve your FCR.
Read the guideGuideWhat Should FCR Be for Rainbow Trout?
Typical FCR range in Rainbow Trout farming, suitable water temperature, oxygen, harvest weight and production time. Calculate and improve your FCR.
Read the guideGuideWhat Should FCR Be for Atlantic Salmon?
Typical FCR range in Atlantic Salmon farming, suitable water temperature, oxygen, harvest weight and production time. Calculate and improve your FCR.
Read the guideGuideWhat Should FCR Be for Nile Tilapia?
Typical FCR range in Nile Tilapia farming, suitable water temperature, oxygen, harvest weight and production time. Calculate and improve your FCR.
Read the guideGuideWhat Should FCR Be for Whiteleg Shrimp?
Typical FCR range in Whiteleg Shrimp farming, suitable water temperature, oxygen, harvest weight and production time. Calculate and improve your FCR.
Read the guideGuideWhat Should FCR Be for Common Carp?
Typical FCR range in Common Carp farming, suitable water temperature, oxygen, harvest weight and production time. Calculate and improve your FCR.
Read the guideFarming guides
How to Estimate Fish Biomass
Estimating biomass in cages and ponds: how to sample-weigh, how many fish to weigh, how to reduce error and how biomass affects feeding.
Read the guideGuideWhat Should Stocking Density Be?
How is stocking density (kg/m³) set in cages, ponds and RAS? The effect of high density on FCR, growth and mortality, and the right stocking calculation.
Read the guideGuideWhat Is SGR (Specific Growth Rate)?
What is SGR (specific growth rate), how is it calculated and interpreted? Daily weight gain, TGC and using SGR to forecast harvest.
Read the guideGuideHow to Plan a Fish Harvest
How to set harvest timing from target weight, growth rate, market demand and price. Pre-harvest starvation, yield and planning steps.
Read the guideGuideHow to Reduce Fish Mortality
How to calculate mortality on a fish farm, classify causes of death, decide which rate is an alarm and reduce losses.
Read the guideGuideCamera Feeding Monitoring
How an in-cage camera tracks appetite and feed loss during feeding, which events to record and how cameras improve FCR.
Read the guideWater quality guides
Managing Dissolved Oxygen in Aquaculture
What mg/L of dissolved oxygen fish farming needs, why it drops, when to measure it and what to do when it falls. Aeration calculation and monitoring guide.
Read the guideGuideManaging Ammonia and Nitrite
What are total ammonia (TAN), free ammonia (NH₃) and nitrite, which levels are dangerous and how to lower them? How pH and temperature affect ammonia toxicity.
Read the guideFeed guides
How to Choose Fish Feed
What to consider when choosing fish feed: protein and fat content, pellet size, digestibility and floating vs. sinking feed, plus how to compare feeds by cost per kg of growth rather than by price.
Read the guideGuideHow to Calculate Feed Cost in Fish Production
How to calculate feed cost per kg of fish, the annual feed budget and feed’s share of total cost: formulas, examples and ways to lower feed cost.
Read the guideGuideHow to Build a Feeding Table
How are the daily feeding rate, number of meals and ration set by fish size and water temperature? A guide to building and updating a feeding table.
Read the guideGuideHow to Store Fish Feed
Protecting fish feed from heat, humidity, sunlight and pests; preventing losses and quality decline with FIFO, expiry dates and lot tracking.
Read the guideBusiness management
How to Calculate Production Cost per Kg
How to calculate production cost per kg from feed, juveniles, labour, energy, health and depreciation; break-even price and ways to cut costs.
Read the guideGuideSeafood Traceability
What seafood traceability from juvenile to customer means, which data to record, how to design lot numbers and how to manage recalls.
Read the guideGuideExcel or Fish Farm Software?
The pros and limits of running a fish farm on Excel; when to switch to software, how to migrate and what gets automated.
Read the guideTrade, logistics and maritime guides
What Is Landed Cost and How Is It Calculated?
What is landed cost, what does it include and how is it calculated? A unit cost example with CIF, customs duty, VAT, port and inland transport.
Read the guideGuideIncoterms 2020 Guide
Incoterms 2020 rules: who bears cost and risk under EXW, FCA, FOB, CFR, CIF, DAP, DPU and DDP? Quote comparison and pricing examples.
Read the guideGuideWhat Is an HS Code and How Is It Found?
The structure of HS and national tariff codes, the difference between 6 and 12 digits, steps to find the right code and the duty and penalty risks of misclassification.
Read the guideGuideWhat Is a Bill of Lading?
What a bill of lading does, the difference between original, telex release and seaway bill, house and master B/L, mandatory fields and a pre-shipment checklist.
Read the guideGuideHow to Calculate CBM
CBM (cubic metre) calculation: carton and pallet volume, how many cartons and pallets fit in a container, volumetric weight and container utilisation.
Read the guideGuideLCL or FCL?
The difference between groupage (LCL) and full container (FCL) shipping, the W/M rule, the break-even point and when each is cheaper.
Read the guideGuideWhat Are Demurrage and Detention?
The difference between container demurrage and detention, free time, tiered daily rates and ways to reduce delay costs.
Read the guideGuideWhat Is DWT (Deadweight)?
The relationship between DWT, displacement, lightship weight, draft, TPC and cargo capacity — how to calculate how many tons of cargo a ship can really take.
Read the guideGuideWhat Is TCE (Time Charter Equivalent)?
How TCE is calculated and how to compare voyage and time charters — a worked example with freight revenue, voyage costs, fuel and port days.
Read the guideGuideHow to Calculate Bunker (Marine Fuel) Cost
A guide to ship fuel consumption, the difference between VLSFO, MGO and ULSFO, sea and port fuel, safety margin and voyage bunker cost.
Read the guideGuideWhat Is Laytime and How Is It Calculated?
Laytime in voyage charters, NOR, turn time, SHINC/SHEX terms, excepted periods and demurrage/despatch calculation with examples.
Read the guideGuideHow to Calculate Cold Chain Cost
Cold storage capacity, pallet layout, energy cost, refrigerated transport and temperature monitoring — and the cold chain cost per kg.
Read the guide


