The cheap model of the Artemia hatchery has certain disadvantages that any serious breeder will eventually encounter. Firstly, it tips over easily as the center of gravity is high, and secondly, it can produce both noise and odor issues in the fish room. In this significantly improved deluxe model, these disadvantages are totally eliminated, creating a much more stable and efficient way to hatch Artemia salina nauplii.
Concept and Advantages
The basic concept is a closed cabinet with a built-in holder, air pump, and lighting. One of the primary advantages of this enclosed design is the ability to provide 24/7 lighting. This ensures a steady temperature (typically 25-28°C) and strong illumination, which triggers the metabolism of the cysts. This results in a significantly higher hatching rate and faster development from cyst to nauplius.
The system still utilizes the classic inverted 1.5L soda bottle with a cap, as described in the cheap model. Since the cabinet acts as the support, you can operate multiple bottles independently to ensure a continuous supply of live food.
Construction and Aeration
An air hose runs from the built-in air pump to a manifold or branch connector placed above the water level to prevent backflow. From there, individual hoses are led to each bottle through the cap. This ensures vigorous circulation, keeping the eggs in constant motion and preventing them from settling in dead zones.
Harvesting and Maintenance
When it comes to harvesting, the deluxe model is superior. By turning off the upper light and activating a lower light source, the phototactic nauplii gather at the bottom of the bottle while empty shells float to the surface.
Note: When cleaning the bottles, you can disconnect the air hose from the manifold. Be careful not to drop the hose below the water line, as the water will drain out via siphoning and cause a mess.
