How to Raise Brine Shrimp

Co-authored by Doug Ludemann

Last Updated: July 18, 2024 Approved

Brine shrimp are a nutritious and easy to raise feed for tropical and marine life. Although there are plenty of artificial dietary options, brine shrimp provide important lipids, vitamins, and amino acids many fish need.^{[1]
X
Research source} Brine shrimp are also a fun creature for children to raise. Brine shrimp, especially in their adult stages, can be bought in most pet stores, but it is sometimes more convenient to raise them at home. Raising them will be easier if you have experience with maintaining a saltwater tank system, but this article will detail the essentials of raising brine shrimp, so you will know how to begin raising them and how to maintain the tank.

Part 1

Part 1 of 5:

Setting Up a Brine Shrimp Tank

Download Article

1
Go shopping. All of the supplies necessary will be found at an aquarium or pet store; you can shop online if that is more convenient. You will need many supplies for your brine shrimp tank, including:
- 10 gallon tank
- Sponge filter (that comes with a tube, a sponge, and a hookup for the air pump)
- Air pump
- Tank heater and thermometer
- A package of brine shrimp cysts (eggs)
- Aquarium salt mix (setting up a brand new aquarium means you will need about 13 pounds of salt per 50 gallons)
- 1 gallon container with a lid
- 10 gallons reverse osmosis water
- Refractometer or hydrometer for measuring salinity
- Gravel vacuum
- Flashlight
2
Determine the best location for the tank. Saltwater tanks should not be near any windows, doors, heater vents, direct sunlight, or air conditioners so the temperature of the water does not change rapidly. The tank should also be set up near electrical outlets because you will need to plug in the heater and air pump.
- Leave room between the tank and the wall so the air pump will easily fit.
- The surface should also be level.
Advertisement
Dry the outside of the tank once you are done, and then place the tank where it belongs in your home.
4
Fill the tank with a saltwater mixture. Make a saltwater mixture with aquarium salt and reverse osmosis filtered water.^{[2]
X
Research source} Fill the 10 gallon tank with 9 gallons of water so there is room for the salt. Then, add the salt per manufacturer’s instructions.
- The salt container will have specific instructions for calculating the amount of salt necessary for your tank.
- Don’t worry if you add too much or too little salt; you can adjust the levels before adding the brine shrimp cysts.
$Step 5 Track the salinity with a refractometer or a hydrometer.$

5
Track the salinity with a refractometer or a hydrometer. The salinity of the tank should always be 30-35 ppt (parts per thousand).Use the instructions for your refractometer or hydrometer to measure the salinity of the tank, and add more salt or more reverse osmosis water accordingly.
- Operating the refractometer or hydrometer involves placing some of the water inside via a dropper or other apparatus.
- Test the water until you reach the correct salinity.
- If you’ve mixed the saltwater correctly according to the manufacturer’s instructions, you will not have to tinker with the mixture.
6
Set up a slow air-powered sponge filter. This is the best filter to use in the tank because it will provide aeration, filter the tank water, and won’t suck up the tiny brine shrimp. The filter should include a tube, a sponge, and a hookup for the air pump; if it does not include the hookup for the pump, buy this separately.
- You can place the sponge filter on the bottom of the tank or mount it to the side of the tank, depending on the model you purchased.
- There are many cheap filters on the market nowadays, but do not scrimp on filtering equipment.
- Faulty filters may cause the brine shrimp to die.^{[3]
  X
  Research source}
Using airline tubing, attach the end of the sponge filter to the end of the air pump. Plug the pump in, and the filter will begin working. Keep the filter on a sturdy surface behind or below the tank.
Set up the heater according to the manufacturer’s instructions. Once you plug it in, you can begin to control the temperature of the tank.
Place the thermometer on the opposite end of the heater so it is easily visible. Once both the heater and thermometer are installed, you can adjust the heater so the tank is always at the correct temperature: 68°F (20°C)-79°F (25°C). Turn it up or down accordingly.
Once the tank has maintained this temperature for 24 hours, it is stable enough to hold the brine shrimp. Check the temperature at least twice a day—if the heater is accidentally unplugged or the temperature drastically changes for any reason, your brine shrimp could die.

Part 2

Part 2 of 5:

Hatching Brine Shrimp

Download Article

Packets of dehydrated brine shrimp cysts are sold at aquarium and pet stores.^{[4]
X
Research source} Beginning with one packet is fine, since the brine shrimp will multiply rapidly.
^{[5]
X
Research source} If your tank is the correct temperature and salinity for the shrimp, they will hatch within a day. 12 hours after that, you will have young shrimp swimming around in the tank.
3
Enjoy watching the brine shrimp population grow. Brine shrimp will multiply quickly. They will begin as tiny cysts and end up as small shrimp. You do not need to aid them in hatching or growing, since they will do so naturally in a well-maintained tank.
- If your brine shrimp are not growing or hatching, check the salinity and temperature of the tank for problems.
- It is natural for some of the brine shrimp to die.

Part 3

Part 3 of 5:

Maintaining a Suitable Habitat

Download Article

1
Make a reserve of saltwater.^{[6]
X
Research source} You will need to keep the saltwater on hand for when you change the tank water. Always having a gallon of saltwater ready will make changing the water much easier.
- Fill a gallon container with reverse osmosis water.
- Add the salt per manufacturer’s instructions.
- Cap the container, and store the saltwater in a cool, dry area until you need it.
2
Use a gravel vacuum to change the water in the hatchery regularly, about 20% (2 gallons) per week.^{[7]
X
Research source} Turn off the aeration and circulation system before changing the water. Let the air in the tank settle so it is not moving. Shine a bright light at the surface of the tank so the brine shrimp all flock to it.
- Siphon the dirty water off the bottom of the tank with the gravel vacuum.
- Then, replace the siphoned water with some of the marine salt mixture you made earlier.
- Check the salinity and temperature of the tank to make sure the levels are good.
3
Rinse or replace the sponge filter every 1-4 weeks. The sponge filter may get noticeably dirty. To rinse or replace the filter, turn off the air pump, remove the sponge, and rinse it in the used tank water, or non-chlorinated (conditioned with Prime or other conditioner) room temperature-or current temperature of your aquarium water. When it is clean again, replace it, and turn the air pump back on. You will only need to get a brand new sponge if it disintegrates. It houses useful bacteria to keep the tank healthy. Never rinse the sponge or any other filter in anything other than used tank water or conditioned water. To rinse filter media in too hot, too cold or chlorinated water destroys the bacteria that supports a healthy tank.
- Use a flashlight to herd the brine shrimp away from the sponge filter when doing this.
- You may need someone to help you grab the filter or shine the light.
All of these factors are important to keep in mind when you are maintaining a saltwater habitat. Get into the habit of checking these factors weekly.

Part 4

Part 4 of 5:

Feeding Brine Shrimp

Download Article

Selcon is a popular brand, and there are many others available at most aquarium stores. Ask an employee for help if you have trouble finding the formulas, or use an online store to buy the food in bulk.
Brine shrimp are not picky, and they will eat these human foods. Spirulina is another option to feed the brine shrimp.
Do not overfeed the brine shrimp! If the tank water begins to look excessively murky and dirty with food, clean the tank and feed the brine shrimp smaller amounts.

Part 5

Part 5 of 5:

Harvesting Brine Shrimp

Download Article

Of course, if you are raising brine shrimp purely for pleasure, you do not have to harvest them, but after 8 days, the adults are large enough to catch with a net and feed to other fish.
After about 10 minutes, the empty cysts shells will float to the surface, and unhatched cysts will sink to the bottom.^{[8]
X
Research source} Now, you can more easily catch the live brine shrimp.
All of the brine shrimp will flock to the light, so they will be easy to catch with the fish net.
The smaller brine shrimp will fall through the net, but larger ones won’t. Catch the amount you wish to feed to your other fish.
Place them in the tank of the fish you want to feed. Your other fish will get to enjoy the nutritious brine shrimp.

Expert Q&A

Search

Add New Question

Question

How can I get brine shrimp to hatch quickly?

Doug Ludemann
Professional Aquarist
Doug Ludemann is the owner and operator of Fish Geeks, LLC, an aquarium services company based in Minneapolis, Minnesota. Doug has worked in the aquarium and fish-care industry for over 20 years, including having worked as a professional aquarist for the Minnesota Zoo and Shedd Aquarium in Chicago. He received his Bachelor of Science in Ecology, Evolution, and Behavior from the University of Minnesota.

Doug Ludemann

Professional Aquarist

Expert Answer

You can buy decapsulated brine shrimp that will branch from eggs. That will reduce the hatching time down to a few hours instead of a few days.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 1 Helpful 10
Question

How do you care for live brine shrimp?

Doug Ludemann
Professional Aquarist
Doug Ludemann is the owner and operator of Fish Geeks, LLC, an aquarium services company based in Minneapolis, Minnesota. Doug has worked in the aquarium and fish-care industry for over 20 years, including having worked as a professional aquarist for the Minnesota Zoo and Shedd Aquarium in Chicago. He received his Bachelor of Science in Ecology, Evolution, and Behavior from the University of Minnesota.

Doug Ludemann

Professional Aquarist

Expert Answer

Keep their salinity within the proper range. I think you can go with a variety of ranges. What works really well is you put a stopper at the bottom of 2 liter bottle. Then, put an aerator in there and stand it up. You don't even need a diffuser at the bottom. Fill it with water. Keep it a little warmer than room temperature, and feed them.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 1 Helpful 3
Question

What do brine shrimp eat?

Doug Ludemann
Professional Aquarist
Doug Ludemann is the owner and operator of Fish Geeks, LLC, an aquarium services company based in Minneapolis, Minnesota. Doug has worked in the aquarium and fish-care industry for over 20 years, including having worked as a professional aquarist for the Minnesota Zoo and Shedd Aquarium in Chicago. He received his Bachelor of Science in Ecology, Evolution, and Behavior from the University of Minnesota.

Doug Ludemann

Professional Aquarist

Expert Answer

You can feed them spirulina powder for sure. They may be able to eat yeast as well, but I'd check on that elsewhere first. Spirulina powder will always be a safe bet, though.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 1 Helpful 3

See more answers

Ask a Question

200 characters left

Include your email address to get a message when this question is answered.

Submit

Video

Tips

Experiment with different methods of hatching and raising your brine shrimp and use what works best for you.

Thanks
Helpful 5 Not Helpful 0
Brine shrimp are attracted to light. Using a light to attract them into one area can greatly aid in catching them.

Thanks
Helpful 5 Not Helpful 1
If you don't have or can't find a gravel vacuum, you can use a turkey baster instead.

Thanks
Helpful 4 Not Helpful 1

Show More Tips

Submit a Tip

All tip submissions are carefully reviewed before being published

Name

Please provide your name and last initial

Submit

Thanks for submitting a tip for review!

Warnings

Be very careful when working with both water and electricity. Although air pumps are built to be used around water, they vary in quality and are not built to be submerged or doused in water.

Thanks
Helpful 84 Not Helpful 50

Things You'll Need

10 gallon tank
Sponge filter (that comes with a tube, a sponge, and a hookup for the air pump)
Air pump
Tank heater and thermometer
A package of brine shrimp cysts (eggs)
Aquarium salt mix (setting up a brand new aquarium means you will need about 13 pounds of salt per 50 gallons)
1 gallon container with a lid
10 gallons reverse osmosis water
Refractometer or hydrometer for measuring salinity
Gravel vacuum
Flashlight