Ghost shrimp (Palaemonetes sp.) care & info
Freshwater ghost shrimp from the Palaemonetes genus, also known as glass shrimp, are hardy shrimp often used as feeders due to their low price. However, they're also easy, fun additions to the aquarium and a great choice for anyone looking to gain some experience in shrimp keeping.
Keep reading for everything you need to know about ghost shrimp care and keeping them in your aquarium!
Scientific name | Various shrimp species in the Palaemonetes genus |
Common names | Ghost shrimp, glass shrimp, freshwater glass shrimp |
Difficulty level | Easy |
Origin | North America |
Table of Contents
Setting up a ghost shrimp aquarium
Requirements
As mentioned above, these shrimp are not difficult to keep. They don't require a specialized aquarium set-up and a tank of at least 10 gallons (38L) should be large enough to sustain a colony. You can keep around three ghost shrimp per gallon without any issues.
As always, your aquarium should be filtered and fully cycled before any shrimp are added. Although ghost shrimp can handle a relatively wide temperature range it's a good idea to always use a heater to prevent sudden temperature fluctuations.
Like all shrimp, this species can become skittish if the aquarium lacks hiding places. Palaemonetes shrimp love a heavily planted tank! If you want to see your shrimps' natural (foraging) behavior be sure to use plenty of plants and hides.
Water quality
One of the reasons Palaemonetes shrimp are so popular as feeder shrimp is that they are quite hardy and can handle bad water quality fairly well. This makes it easy to ship and house them in massive amounts; after all, if a few die it's not like a lot of money is lost.
Obviously, things are a little different if you keep these shrimp in your display aquarium. If you want them to live a long and happy life, it's important to keep the water quality high. That means the tank should always be fully cycled (zero ammonia, zero nitrite and nitrates as low as possible).
Overstocking is not much of a worry if you only keep ghost shrimp, as their bioload is very low, but it's something to keep in mind if you're going for a community tank. Room temperature is fine, but as discussed above it's a good idea to still use a heater as backup.
pH: 7.0-7.8
Temperature: 65-82 °F/18-27.5 °C
Water hardness: 3-15 dkh
Tankmates
Because they are a little larger than dwarf shrimp, there is less risk of your Palaemonetes shrimp being eaten by their tankmates. That being said, you should still avoid keeping them with any fish that might have an appetite for shrimp! Peaceful tankmates are a must for any shrimp. If you're interested in actively breeding your ghost shrimp, you might want to consider setting up a single-species tank, as the larvae are very vulnerable.
Keep in mind that ghost shrimp are known to be slightly more aggressive than dwarf shrimp. Fish with long fins, such as Bettas, might be damaged by these opportunistic feeders.
Can ghost shrimp live with red cherry shrimp?
Yes, they can. The species are compatible and won't harm each other. They can't interbreed, though.
Can ghost shrimp live with goldfish?
No, we don't see the possibility of a harmonious co-existence there. Goldfish are omnivorous underwater vacuums that will consume a ghost shrimp if they can.
Ghost shrimp diet
Do ghost shrimp eat algae? Are they a good addition to your aquarium as part of your 'cleaning crew'? Good news: the answer is yes to both!
One of the reasons Palaemonetes shrimp aren't just appreciated as feeders is their diet. These shrimp are omnivorous scavengers that will eat pretty much anything they come across, while maintaining a low bioload. They will consume leftover foods, decaying plant matter, and yes, algae too.
If your aquarium is very clean, your shrimp likely can't find enough to eat by themselves. You can supplement their diet with anything from algae wafers to frozen foods such as mosquito larvae.
Breeding ghost shrimp
Breeding Palaemonetes shrimp is a little different from breeding dwarf shrimp. They don't hatch as miniature versions of their parents like many other shrimp species do. Rather, they pass through a larval stage during which they are very vulnerable and easily (accidentally) damaged or killed.
To breed your shrimp, set up a single-species aquarium with a sponge filter. Make sure your shrimp colony contains both males and females and plant the tank heavily to provide the larvae with a place to hide and feed on infusoria and biofilm. Make sure your water values are perfect and you should soon start seeing females carrying small green eggs between their swimmerets. That's it!
Ghost shrimp eggs hatch in around three weeks. You probably won't see the larvae much at first, but they should come out of hiding once they're large enough to feel safe out in the open.
How to determine ghost shrimp gender
Wondering whether you've actually got both male and female shrimp on your hands? The differences are subtle, but you'll get a feel for it.
Female ghost shrimp are larger than males. They will have a colored fleck behind the head, called a saddle, which are eggs developing in the ovaries. Alternatively, they might carry eggs in their swimmerets.
Frequently asked questions
Palaemonetes shrimp lifespan isn't quite as long as that of some of the other invertebrates we've discussed here on the blog. They can live for 1-1.5 years, but that's their potential lifespan.
A ghost shrimp kept in a dirty feeder tank may not make it more than a couple of weeks, but there's no guarantee either way.
Usually not. After all, the ideal water temperature for ghost shrimp is between 65-82 °F, which falls within room temperature range. However, we generally still recommend using a heater to prevent temperature swings and to help keep things stable.
That depends: because various species from the Palaemonetes genus are sold in aquarium stores as juveniles, there's a chance your shrimp can end up growing very large and somewhat aggressive. Be sure to ask the pet store if they know what kind of shrimp their ghosts are. Palaemonetes paludosus, the American glass shrimp, is a great, non-aggressive option.
One species to avoid if you're worried about aggressive shrimp is the very similar Macrobrachium lanchesteri, which is unfortunately sold under the same name sometimes.
Molting frequency decreases with age, but even mature shrimp molt around once a month. You might not see your shrimp during shedding time, as they feel vulnerable and tend to hide for a day or two.
The common American glass shrimp, Palaemonetes paludosus, officially is. Luckily that doesn't mean you won't see yours at all during the day. In the aquarium, they're still relatively active when it's light.
There are many possible causes. Are you buying low-quality Palaemonetes shrimp meant as feeders? They may have been permanently damaged by low water quality or even be one of the species that lives in brackish water. And speaking of low water quality, have you done a test using a liquid water testing kit yet? Have you checked you're following all the instructions in this care guide?
If you're truly stumped, feel free to leave a comment below describing your situation. We're happy to share any insights we may have.
These shrimp can turn white when they're about to molt. It may also happen when they're at the end of their lifespan (due to old age) or if they're stressed due to low water quality. Time to whip out your water test kit!
It is normal for a Palaemonetes shrimp to change color, but a normal color change would usually involve the appearance of more brown coloration, not a milky white appearance.
Buying ghost shrimp
Palaemonetes shrimp are one of the most common shrimp species in the aquarium hobby and you shouldn't have too much trouble finding them. Because they are often used as feeders, you might be able to find them at your local pet- or aquarium store for a low price. However, keep in mind that these shrimp might not be healthy. They might also be one of the species that actually requires brackish water.
You can also find 100% healthy freshwater ghost shrimp that don't turn into huge monsters (Palaemonetes paludosus) at The Shrimp Farm with live arrival guarantee. Just click here to buy your shrimp!
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