Products Description
Sourcing and Quality
Aqua Plus® GSL Brine Shrimp Eggs are harvested from the Great Salt Lake in Utah, USA, a region known for consistent cyst quality and hatch performance. Harvesting follows sustainable management practices, with collection volumes aligned with cyst density in the lake to maintain ecological balance. The cysts go through mechanical cleaning, density separation, and controlled dehydration to remove debris and unfertilised eggs while preventing bacterial contamination. Each batch is lab-tested for pathogens and confirmed free from Vibrio and fungi.
Hatch and Nutrition
Hatch rate is the most direct indicator of cyst quality. Under standard hatching conditions (28°C, 35ppt salinity, pH 8.0-8.5), Hatch GSL Brine Shrimp Eggs consistently achieve hatch rates above 90%, with synchronous hatching ensuring uniform nauplii size. Nauplii average 440 to 470 microns, suitable for the mouth gap of a wide range of marine and freshwater larvae. Nutritionally, the cysts offer a minimum of 60% crude protein and are rich in highly unsaturated fatty acids (HUFAs), including DHA and EPA, which are critical for marine larval development.
Hatch and Use
GSL Artemia is straightforward to hatch. Begin by soaking cysts in freshwater for 30 minutes to rehydrate. Hatching salinity should be kept at 25 to 35ppt using marine salt mix, with strong aeration to ensure oxygen supply. Temperature should be maintained at 28 to 30°C, with light exposure triggering nauplii emergence. Hatching completes within 18 to 24 hours. After hatching, stop aeration and allow 10 to 15 minutes for settlement – nauplii will gather near the bottom or light source and can be siphoned for feeding. Decapsulated cysts hatch faster (12 to 16 hours) and require no separation from shells. Store unused product in sealed packaging under refrigeration (0 to 6°C).
Artemia Eggs are suitable for shrimp, fish, and crustacean larval rearing, covering commercial hatcheries, ornamental fish breeding, and research institutions. Great Salt Lake Artemia can be used as a first feed for fry or as a daily nutritional supplement for adult fish. For larval stages, it can partially replace artificial microencapsulated feeds and help smooth the transition to formulated diets. For adult fish, it serves as a functional supplement to diversify the diet. After opening, keep refrigerated to prevent moisture affecting hatch rates. No pre-treatment is needed before hatching – just incubate and use.
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Frequently Asked Questions
Q: What makes Salt Lake Artemia superior to other sources?
A: Salt Lake Artemia cysts have evolved in extreme salinity, resulting in:
✔ Higher stress resistance.
✔ Better HUFA retention.
✔ More consistent hatch rates compared to coastal strains.
Q: How should I store unhatched cysts?
A: For long-term storage:
Seal in airtight bags.
Keep at -20°C (up to 2 years).
For short-term use:
Refrigerate at 4°C (6 months).
Q: Why is my hatch rate lower than expected?
A: Common causes include:
Old/improperly stored cysts (check expiry date).
Suboptimal salinity/temperature (use a refractometer & heater).
Insufficient aeration (ensure strong bubbling).
Q: Can I use these cysts for marine and freshwater fish?
A: Yes! Artemia nauplii are universally accepted by:
Marine fish (clownfish, groupers).
Freshwater fry (betta, guppy, cichlids).
Crustaceans (shrimp, crab larvae).
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