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Old 11-06-2007, 03:08 PM   #1
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Default Breeding ghost shrimp(Palaeomonetes patulous)

Breeding and Raising the Ghost Shrimp
Palaeomonetes patulous
By: Corydora_FREAK
All photos by author except as noted

http://i103.photobucket.com/albums/m...rimp10gall.jpg
Adult Male Ghost Shrimp

The Ghost Shrimp has been a staple in the aquarium hobby for many years, and I am always hearing questions on how to get them to breed in an aquarium. I have had great success not only getting them to breed, but also raising the fry, which seems to be the most challenging part of it all.


The Ghost shrimp is really a ready spawner in the home aquarium, but like any animal, conditions need to be right or you will not get anything. I keep my Ghost Shrimp in a 10 gallon tank all to themselves simply because these small animals are prey to almost all tropical fish, and they will not produce eggs if they feel threatened.

Anatomy

Before we get started lets review on some Ghost Shrimp biology.
http://i103.photobucket.com/albums/m...myofshrimp.jpg
Courtesy of Google images (ghost shrimp anatomy)



http://i103.photobucket.com/albums/m...shrimptank.jpg
The Shrimp Tank
http://i103.photobucket.com/albums/m...16/Larval2.jpg
Larval Shrimp

Getting Started
The reproductive cycle will not begin if you don’t have 4 things for the shrimp
Security: they wont breed if they are threatened by predators
Males and Females: Seems obvious right? Can you sex your shrimp? Well Yes, you can! And it’s rather easy! Although it is almost impossible until the shrimp are full grown. The female has a much larger body size full grown, she will max out at about an inch and a quarter, while males stay much smaller at about 3 quarters of an inch, and they also have a much slimmer body style, the females tail and pleopods will be much larger to accommodate the eggs. Unlike most fish, you can have a relatively low number ratio of males to females. I have 1 male fertilize 2 females.
The Water parameters: As with breeding any fish or invertebrate, you need 0 Ammonia, Nitrite, and as close to zero as possible on Nitrates. Shrimp are very delicate and need matured substrate and clean water to thrive and in turn, breed. The temperature needs to be 73-78 degrees Fahrenheit or 20-30 degrees Celsius. Keep the salinity low, I use one teaspoon of aquarium salt for 10 gallons. Very small amounts.
Readiness of Food( but feed properly!) The shrimp breed in the abundant seasons in the wild, if they have plentiful food sources it will greatly increase the chances of eggs to be laid. I cant stress enough the importance of NOT overfeeding!! A great way to give your shrimp plenty to eat is to let the algae grow on the ornaments like rocks( but you don’t have to let it overgrow, a little is all you need, not a forest!), they love to eat it off, although they are NOT entirely algae eaters and you will need to supplement their diet with protein and calcium to and that can be found in bottom feeder pellets. Remember these are small animals and a little goes a very long way. Take a quarter of the bottom pellet and crush it the size of crumbs, then put it in, that amount will sustain my 3 full grown shrimp for about 2 days depending on how hungry they are

So, we have eggs!

The female shrimp will lay anywhere from 20 to 30 eggs and carry them on her enlarged pleopods for 21 to 24 days. The eggs look like little black dots under all over her pleopods. When fertilized the eggs will become clear. Over the 21 day incubation period, the eggs will stay clear until the last 4 or 5 days, then you will actually notice little black dots on each of the eggs. This is the larval shrimps eyes! When you can see eyes, you know the hatch is coming very soon. Turn off your filter and pull out the intake tube if you have a power filter as the young shrimp will be sucked to their doom, they need still waters.

http://i103.photobucket.com/albums/m...stwitheggs.jpg
Notice the black eggs under her abdomen.

After the 21 to 24 days the eggs will then hatch and the young will still be clung to the female’s pleopods. The mother will swim up into the water column and rapidly paddle her pleopods to release the larval shrimp into the water column, she will not release all the young at once because she is vulnerable to predators in the wild, and lets face it they think they are in the wild. She will make many intervals to shake loose all the larvae. Do not disturb her if you happen to witness this as she will take cover instead of releasing the young and they will die under her if they stay for more than an hour as they need to get out and get food.

Larvae!!!

So the eggs hatched and the larvae are out and free swimming! Alright, now the real work has begun. Before I continue I would like to state that a third or more of the larvae may die from lack of food or predation by parents. Now, the fry have enough energy to survive without food for only an hour or two, they are not born with yolk like fish to survive, and they will immediately start to forage for food. The larvae have no legs (paraeopods) so they will be swimming in a vertical position with heads down. They are extremely small, but will grow very fast. They will double in size in 4 to 6 days depending on the nutrition they receive. What do the larvae eat? The answer, infusoria. Infusoria are bacteria that digest plant matter and will be plentiful in a cycled mature tank with algae or live plants. They are highly nutritious and will be the larvae’s food, after just 2 days they will then begin to eat algae as well. Mine tend to love the thin layer on the glass, they can use their extremely tiny budding legs to hold on to the algae and eat their fill. Remember they cant walk, only propel themselves along with their tails. They are usually skittish and if you walk by and get close they will use their tails to jet them away from you to the nearest cover. Its rather funny to see the little specks dashing around so fast. Remember, keep clean water since the filter is disconnected, do a 10 percent water change every day! Now lets take a look at some larval shrimp!

http://i103.photobucket.com/albums/m...16/Larval1.jpg
This shrimp is brand new, as it was shaken loose from its mother only 6 hours ago, all your larvae will adopt this up and down position as they have no legs to walk, They will drift around engulfing food as it drifts by. This is why its crucial that you have the tank for the shrimp only, these floating young would be easy targets for fish.

http://i103.photobucket.com/albums/m...impupclose.jpg
Up close with the larvae, see the underdeveloped legs the absence of pleopods. Don’t worry, they will come in extremely quickly, in anywhere from 3 to 5 days.

Grow shrimp, grow!

Ok so your shrimp larvae have survived the first crucial week! Ok, the hard part is over! Now after 1 week they are called juveniles. Their legs will have grown in and they will now forage as miniature adults. If you think you lose one because you cant find it, don’t fret, remember these creatures are extremely small still, and remember their coolest quality, transparency. So don’t worry they are probably just hiding. After 2 weeks have passed they will be miniature copies of the adults and will grow rapidly. They will reach adulthood in 5 weeks.

Well I would like to thank you for taking the time to read this, I sure hope it helps and if you have any further questions drop me a line, though PM or this thread.

http://i103.photobucket.com/albums/m...lewithJuvi.jpg
Mother with 2 week old juvenile
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Old 11-07-2007, 02:34 PM   #2
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edit: great article
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Old 11-08-2007, 07:57 AM   #3
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Very Well Written, per Justonemore20 this is now a sticky congrats!
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Old 11-08-2007, 12:00 PM   #4
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Excellent article and great pictures, Corydora_FREAK!
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Old 11-08-2007, 12:59 PM   #5
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thanks everyone! i put a lot of time into it, i am glad it turned out well
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Old 01-15-2008, 01:27 PM   #6
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Cory, I'm not having much luck with trying to breed my shrimp in another tank. Thus, I was considering the idea of using a fine tank divider or a breeder box.
Would this work?
http://www.fishforums.com/forum/diy-...-eudie-ub.html
How about something like this
http://www.petco.com/product/7449/Le...-Breeders.aspx
I might have to use some filter floss for the size openings because they are kinda wide.
How small are the larvae in terms of mm? How fine would a mesh have to be to hold at least most of them in?
I was thinking of setting up about a quarter of the tank on the opposite side of the filter where there is almost no water movement. That way the larvae won't get sucked in by the filter or eaten by the fish.

Are there any ghost shrimp species that require brackish conditions for raising fry? I ask because my females seem to drop eggs prematurely.
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Old 02-24-2008, 06:07 PM   #7
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Great article, I might try, but currently I'm trying some other things. Umm is that 1 male, 2 females all you can breed in a 10g or can you add more?
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Old 05-26-2009, 05:23 PM   #8
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This help a lot cause i just got some ghost shrimp and they are prego
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Old 06-30-2009, 03:07 AM   #9
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This is great, but could I ask for help with adults? I bought two at Petco and brought them home and I think they're dead! They turned white and the other fish attacked them and tried to eat them. There was a skin thingy, meaning he shed. But he is flipped over, white, and not moving. Should I assume he is dead?
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Old 02-15-2010, 11:36 PM   #10
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Yep, a white ghost shrimp as a dead ghost shrimp-- ironic, no, that only while ghostly transparent are they at all alive? And yet that's the way it goes.

I know they are only shrimp. But I still get very upset when they die. I have a gravid female about to drop her eggs, and am excited like an expectant father. I guess this is what happens when you don't actually have kids.
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Old 05-23-2010, 09:45 AM   #11
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Originally Posted by Kirby444 View Post
Yep, a white ghost shrimp as a dead ghost shrimp-- ironic, no, that only while ghostly transparent are they at all alive? And yet that's the way it goes.

I know they are only shrimp. But I still get very upset when they die. I have a gravid female about to drop her eggs, and am excited like an expectant father. I guess this is what happens when you don't actually have kids.
lol about the last line, and yeah loosing new shrimp can be very disapointing or disheartening (I know I was very depressed), but from what I understand most pet stores bring them in as feeders and as a result they often arent treated terribly well in transportation. Because of this ghost shrimp tend to have a relatively moderate to high mortality rate. I know that I lost two of the six shrimp I bought in the first two days, I still dont know why they died, but the others seem to be happy and healthy.

My other recomendation would be to do some tests on your tank, maybee theres something in the water that killed them.

Absolutely great article! This is easily the most detailed and informed information on their breeding/birth cycle that I have found. Thank you, now I know what to do with my pregnant shrimp. I was wondering would setting up a small tank (i believe it may be under 10 gallons) as a hatchery tank, filling it with water from a very well established tank, and setting up an airrator in said tank be a good idea? (I would move the pregant shrimp into it relatively soon as i'm not sure how much time I have left before she pops). Or would this be bad for her (and possibly the infants), I wouldnt want her to get lonely and shrimp are group animals.
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Old 06-02-2011, 08:05 PM   #12
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Amazin article! I searched everywhere for detailed information on the breeding cycle. This was the best I have found and answered all my questions. Thank you soo much
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Old 09-07-2012, 11:29 AM   #13
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can i have plain guppies in are the fry too small for even them?
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Old 09-07-2012, 04:12 PM   #14
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oakshaun- 2 things. 1 this is a live bearer question. and 2. I don't get the question. Please post in the live bearer section and try again.
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Old 09-07-2012, 07:27 PM   #15
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From my random guess at what his meaning his, I think he's asking if he can have guppy fry with ghost shrimp. The answer would be yes if this random guess is correct.
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