
Learn how water quality variables drive aquaculture success by constantly monitoring to protect ecosystems. Prevent stress on aquatic species and reduce disease across extensive to intensive systems.
Explore how temperature drives water quality and aquatic health in aquaculture, including cold, cool, and warm water ranges for species like salmon, trout, yellow perch, tilapia, and catfish.
Assess turbidity to gauge water clarity from suspended solids like soil and algae, monitor with a turbidity tube and secchi disk, and aim for 30 cm visibility corresponding to NTU.
Monitor dissolved oxygen with DO meters, which rise with photosynthesis and drop at night, signaling fish stress; increase DO with wind-aligned pond design, aerators, splash inlets, and bottom water flushing.
Understand pH, the 0–14 acidity scale, with an optimum 6.5–8.5 for most fish and shellfish; daylight reduces CO2 and raises pH, while darkness increases CO2 and lowers pH.
Define total solid as the residue left after water evaporates, and differentiate total dissolved solid from total suspension solid, where TDS are dissolved ions and TSS are suspended particles.
Maintain salinity in freshwater aquaculture at 2–3 ppt to aid osmoregulation, electrolyte balance, mucus production, and immune function, while reducing stress and enabling parasite control.
Learn how alkalinity buffers pond water with carbonate and bicarbonate to maintain 50–150 mg/L calcium carbonate, while water hardness and calcium support osmoregulation and shellfish molting.
Master the nitrogen cycle and monitor ammonia, nitrite, and nitrate in aquaculture. See how pH and temperature elevate ammonia and how Nitrosomonas and Nitrobacter form nitrite and nitrate.
Explore multi-parameter equipment that measures pH, dissolved oxygen, and temperature in one device, plus TDS meters and salinity; turbidity via a secchi disk, and ammonia, nitrite, and nitrate with tests.
Prevent water pollution in aquaculture by avoiding and properly managing chemical and drug waste, and controlling metabolic waste such as uneaten feed and excretion to prevent eutrophication and oxygen depletion.
optimize feed protein to the optimum level to reduce nitrogen and ammonia from uneaten feed, and manage high pH and phytoplankton with pond prep, daily monitoring, and copper sulfate algaecide.
Discover turbidity control methods using gypsum and alum to clot clay and adjust minerals, and apply probiotics like EM-1 to improve pond water quality across salinities.
Review water quality management by examining quality variables and their optimal levels for aquaculture species. Explore preventing and treating contamination with high pH control, phytoplankton control, turbidity control, and probiotics.
Discover how water quality and feed quality affect health, growth, and waste in aquaculture, and learn to formulate balanced diets and feeding practices for common species.
Understand essential amino acids balance aquaculture proteins, why fishmeal dominates, and how sustainable animal and plant sources (poultry by-products, insect meal, and soybean or corn meals) fit in aquaculture diets.
Determine the dietary protein to balance amino acids for growth and health while avoiding excess that raises costs and nitrogenous waste, considering protein quality, energy, age, size, and feeding rate.
Explain how lipids power aquaculture energy, sparing protein for growth, and cover PUFA and HUFA, including omega-6, omega-3, EPA and DHA, with fish oil as a major HUFA source.
Examine carbohydrate as a short-term energy source and binder in aquaculture feeds, with starch used via extrusion to enhance pellet integrity.
Learn how fat-soluble vitamins A, D, E, and K, and water-soluble vitamins, support growth and health in fish by pre-mix delivery in aquaculture feed to prevent deficiencies.
Examine minerals in aquaculture feeds, detailing macrominerals (calcium, phosphorus, sulfur, chloride, sodium, potassium, magnesium) and microminerals, with emphasis on phosphorus, osmoregulation, and marine vs freshwater needs.
Learn how to interpret feed formulation data by comparing cricket meal and fishmeal in 1 kg diets, balancing protein, fat, ash, fiber, and nitrogen free extract (NFE).
Master nutritional requirements for your aquaculture species, including protein, lipid, carbohydrates, vitamins, and minerals, and learn to interpret feed formulations in research papers to design practical diets.
learn feed and feeding strategies in aquaculture, focusing on feed cost as a major budget factor and the role of feed type, feeding practices, and nutrient efficiency in growth.
Learn two main feed types—nursery grow-out formulated pellets and hatchery larvae-based feeds—and how pellet size, floating vs sinking, and medicated feeds affect growth, water quality, and disease management.
Learn how hatchery microalgae such as Spirulina, Chlorella, Ulva, Dunaliella, and Nannochloropsis feed fish larvae and prey like rotifers, daphnia, and moina, with monospecific culture and omega-3 PUFA benefits.
Learn to culture artemia as live zooplankton feed for larvae, including decapsulation, hydration, and hatching, and optimize early feeding in 25–30 °C, 30–35 ppt salinity for four to six days.
Cultivate rotifers by inoculating microalgae, monitor food, and maintain 20–35 ppt salinity and 20–35 °C with adequate aeration; use green-water culture of Daphnia and Moina as affordable fry feed.
optimize feeding activities to improve growth performance by ensuring all aquaculture species access feed, preventing under or overfeeding, and adjusting feeding rate and frequency based on body weight and temperature.
Base daily feed on biomass and average weight, adjusting for mortality. Apply Piper et al. rules: 1-2% per feeding with 2-5 feedings daily, distribute evenly within 15 minutes.
Implement first in, first out inventory and regularly track expiry dates of 90–100 days, monitor pests, and use older feed first to prevent spoilage from heat, sun, and moisture.
Evaluate feed performance by tracking daily feed intake and calculating the feed conversion ratio (FCR). Monitor growth through weight and height sampling to keep FCR below 2 and flag inefficiencies.
Explore feed and feeding strategies in aquaculture, from live feeds like microalgae and zooplankton to determining feeding rates by species size and water temperature, and evaluate performance using calculated data.
Becoming Aquaculture Expert (Part 2) is the next step (after 'Becoming Aquaculture Expert (Part 1)' course that I've initiated previously) into realising your ideas to become a sustainable aquaculture producer. It is designed specifically to provide an overview of aquaculture as the way to farm seafood economically and sustainably.
Since the demand of seafood is increasing, aquaculture industry is growing endlessly to keep a consistent supply of aquatic species for human consumption, pets, medication, recreation, etc and limit the harvesting from wild population. It put a relieve in wild species which would allow them to naturally populate and bring lives back to our ocean.
This 2 hours course contains 36 lectures which include detail explanation videos, supplementary articles and quizzes in each section to help you test your understanding along the way.
To help you grasp the knowledge efficiently, I've included 3 supplementary articles for every section to support what you have learn through the videos.The articles will includes references and links of additional resources of related knowledge and will be updated from time to time.
The content of this course is backed by 100% of research from experts in the leading field of aquaculture. Through learning this course, you will become better at managing the most important aspect of your aquaculture system; water and feed respectively. As I will continuously update the content of this course over the time, you will be equipped with the latest research, technology and skills available in aquaculture business.
Afraid not..
You will be able to access this course anywhere, anytime at your own pace. If you are already an aquaculturist for a living, learning specific knowledge from a researcher point of view such as in this course will bring you to another level.
If you are a student or beginner in aquaculture field, this course is perfectly crafted for you. Those completing the course will have strong understanding of basic aquaculture concept and general principle involved in aquaculture system.