1. Horseshoe crab parents: Every year from May to July horseshoe crab spawning season, you can buy or go to the shallow sea mudflat to catch horseshoe crabs that will be spawning, choose the big and strong, clean body, female horseshoe crabs about 4kg / only, male 2kg / only individual.
2. Horseshoe crab spawning pools: Horseshoe crab spawning pools can be used as small cement pools, with 10cm of sand on the bottom and the top shaded from the light. Before the horseshoe crab is put into the pool, it should be disinfected with 30ppm formalin for 10 minutes, stocking density of 2kg-3kg/square meter, controlling the water level of 50cm-80cm, and micro-inflation.
3. Horseshoe crab management: Horseshoe crabs seldom feed during the spawning and breeding period, so there is generally no baiting or a small amount of baiting during horseshoe crab culture. If baiting is done, a small amount of shrimp or fish can be fed at night. Change the water in the culture tank every 3 days, with 100% water change, and remove the residual bait. Control water temperature 23-26 ℃, salinity 25-30 ‰, pH value 7.8-8.2, keep the water quality fresh.
4. Fertilized eggs collection and hatching: each time the water change, hand-picked fertilized eggs from the bottom of the spawning pool in the fine sand, excluding bad eggs and transparent unfertilized eggs. Fertilized eggs will be placed in a fiberglass bucket or a small hatchery, the bottom of the inflatable, keep dark, the water temperature control at 25-28 ℃, pH value 8.0-8.3, salinity 25-30 ‰. Daily water change 20%, and according to the water quality, "pouring pool". Hatchlings of trilobite larvae should be moved to the young horseshoe crab cultivation pool in a timely manner.
5. young horseshoe crab cultivation: young horseshoe crab cultivation pool available in different sizes of cement pool, the bottom of 2cm-3cm of fine sand, add some rubble or small stones for young horseshoe crabs to hide, control the water level of 50-80cm, 20%-30% water change every day, the temperature of the water 25 ℃-28 ℃, salinity of 25-30 ‰, pH value of 7.8-8.3; every once in a while to clean the sand. Clean the sand for a period of time. The bait is mainly rotifers, larvae, fluke, and flat algae to regulate the water quality. Observe the feeding situation of young horseshoe crabs at any time and adjust the type and quantity of bait.