Artemia

The most critical metric for Artemia is the hatching rate, which should ideally be above 80% to 95% for premium grades. Buyers should request a Certificate of Analysis (COA) that specifies the hatching efficiency (number of nauplii per gram) and hatching percentage. Additionally, check for impurity levels and moisture content, which should be below 10% to ensure long-term storage stability.

To achieve optimal results, the water salinity should be maintained between 25-35 ppt, with a pH level of 8.0-8.5. Constant aeration is required to keep cysts in suspension, and the temperature must be stabilized at 28-30°C. High-intensity lighting (2000 lux) is also essential during the first few hours of incubation to trigger the hatching process.

Buyers can choose between Artemia Cysts (eggs), which require hatching, and Decapsulated Artemia, where the hard shell (chorion) is removed for direct feeding. For large-scale aquaculture, Frozen Artemia Biomass or Freeze-Dried Artemia are also available as convenient, high-protein alternatives for larval fish and shrimp.

Artemia cysts are highly sensitive to oxygen and moisture. Ensure the supplier uses vacuum-sealed tin cans or oxygen-free aluminum foil bags. For long-term preservation of hatching viability, the product must be stored in a cool, dry environment (below 4°C) or refrigerated during transit if the journey exceeds two weeks.

The primary risk is biological compliance and quarantine regulations. Many countries require a Veterinary Health Certificate and an Import Permit to prevent the spread of aquatic pathogens. Failure to provide these can lead to customs seizure or destruction of the goods. Always verify the supplier's ability to provide GACC registration if shipping to China or equivalent health marks for the EU/USA.

Focus on volume-based pricing and long-term supply contracts, as Artemia prices fluctuate based on seasonal harvests from locations like the Great Salt Lake or Bohai Bay. Request a pre-shipment sample from the specific batch number you intend to buy, and negotiate a quality guarantee clause where the supplier compensates if the hatching rate falls below the agreed percentage upon arrival.

Due to the high value-to-weight ratio, Air Freight is recommended to minimize exposure to heat. Use Secure Trading Services on Made-in-China.com to ensure funds are only released after the Third-Party Inspection (TPI) confirms the weight and packaging integrity. Ensure the Incoterms (e.g., CIF or DAP) clearly define who is responsible for the specialized storage requirements during transit.