Baby brine shrimp are one of the easiest and most effective live foods you can add to your reef tank. Fish go crazy for them, they can help entice picky eaters to finally start feeding, and corals benefit from the added nutrition. They’re also a great way to introduce variety into your feeding routine. The best part is you don’t need a complicated setup or even an air pump to get solid hatch rates.
With a simple hatchery dish and quality eggs, you can hatch fresh live food at home in about a day with minimal effort.
How to Hatch Baby Brine Shrimp with a Hatchery Dish
1. Start with Clean Equipment
Give the hatchery a quick rinse with RO/DI water before each use. This helps prevent contamination and removes any leftover material from previous hatches.
2. Mix the Saltwater
Combine about 500 ml of RO/DI water with roughly one teaspoon of reef salt and stir until fully dissolved.
- Salinity between 30 and 35 ppt or 1.023 to 1.026 specific gravity
- Temperature between 72 and 82 degrees Fahrenheit
- pH between 8.0 and 8.5
3. Fill and Assemble the Hatchery
Pour the saltwater into the dish up to the fill line, then install the baffles and center sieve. The design is what makes this system work, so make sure everything is seated properly.
4. Add the Eggs
Use a single scoop of brine shrimp eggs and spread them evenly around the outer ring.
You might notice the instructions calling for 1-3 scoops, but we've noticed that using a single scoop improves the hatch rate. Lower egg density means more available oxygen in a system that doesn’t use aeration.
5. Place in a Warm, Bright Area
Put the lid on and place the hatchery in a room with consistent light and stable temperature.
- Typical room temperature of about 72°F usually works fine
- 78 to 80°F will speed things up
If you want to push for a faster hatch, a small desk lamp above the hatchery can help raise the temperature slightly.
What to Expect During the Hatch
Most hatches follow a pretty predictable timeline:
- 18 to 24 hours: first shrimp begin to hatch
- 24 to 36 hours: peak hatch period
- Up to 48 hours: remaining eggs finish
Like we talked about before, warmer temps speed things up, cooler temps slow it down. Either way, as long as the water parameters are in range, the hatch will happen.
No need to open the lid or check constantly. The hatchery is designed to handle the process on its own.
Easy Harvesting by Design
As the shrimp hatch, they naturally move toward light. The hatchery dish uses this behavior to separate them from their shells automatically.
The baby brine shrimp collect in the center over the sieve, while empty shells and unhatched eggs stay in the outer ring.
When you’re ready to harvest:
- Lift out the sieve
- Let it drain briefly
- Add the shrimp directly to your tank
Place it back and repeat as needed until the hatch is complete.
Tip: You don't have to wait until the end of the hatch to start harvesting. Baby brine shrimp are most nutritious the moment they hatch.
Clean Up and Reset
Once the hatch is finished, rinse everything out with RO/DI water. You can then let it dry and store it for next time or set it up for another hatching session right away.
Either way, just be sure to keep the hatchery dish clean for consistent results batch after batch.
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