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TOPIC: Complete Fairy Shrimp Guide

Complete Fairy Shrimp Guide 5 years 4 months ago #22

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Thinking about grabbing a few thousand eggs and hatching them as either live food and/or just as a nano/pico fairy shrimp tank.

Anyone have experience with this?:

- What kind of tanks / bowls do you use?
- What substrate/flora/fauna setup would maximize their life-cycle (if any needed)?
- What do you feed them?

Lastly, anyone keep these as pets? Want to see some pics! :D


Findings
Will update more feedback / info as I find them here. Only good info I can find are from 2 shrimp farms :/ Not sure if this is very accurate:

Wild Habitat:
Fairy shrimp have short life cycles and live in standing temporary water, dry lakes and vernal pools to name some. Many in the wild will also hatch and breed in small puddles of muddy rain water.

Aquarium Habitat:
At home, keepers claim that Fairy Shrimp exhibit brighter coloration when kept under direct light. Use distilled or spring water, and top off regularly. A filter and flow is not required, as Fairy Shrimps live in standing puddles of water in their natural habitats. In fact, strong filters should be reduced and covered with a sponge to prevent sucking away the baby shrimp. Salinity and specific conditions vary based on the species of the shrimp.

Feeding:
In the wild, fairy shrimps are filter feeders. They strain tiny particles (bacteria, algae, spores) out of the water. In captivity, they can live on a diet of “yeast soup”: dissolve 1 packet of dried yeast (bakers or brewers), 1 teaspoon of sugar, and a big pinch of crushed fish food flakes in 1/3 cup of hot spring water. Mix well and let it sit an hour. Store your “soup” in the refrigerator or another cool place. To feed your shrimp, stir or shake the mixture thoroughly. (It settles out quickly.) Use an eyedropper or pipette to drip a few drops of the soup into the water. Give the right amount of food -- the water should be slightly hazy (still see-through), but not cloudy. If it becomes cloudy, stop feeding for a day or two until it clears up.

Genus/Family:
http://en.wikipedia.org/wiki/Streptocephalus
http://en.wikipedia.org/wiki/Branchinecta
http://en.wikipedia.org/wiki/Thamnocephalidae

Species:

Redtail Fairy Shrimp (Streptocephalus _):

Lifespan: 8 weeks
Full Size: up to 0.5"
Temperature: 50-100F, widest range of survival temperature

Thai Fairy Shrimp (Branchinella thailandensis):

Lifespan: 8 weeks
Full Size: up to 1"-1.37"
Temperature: 50-65F optimal to hatch

Dry Lake Fairy Shrimp (Streptocephalus _)

Lifespan: 3-5 weeks average, up to 9 weeks
Full Size: up to 0.9"
Temperature: can survive up to 93F

Winter Fairy Shrimp (Branchinecta _)

Lifespan: 10 weeks
Full Size: up to 0.8"
Temperature: 40F - 72F (optimal 60-68); can even hatch in icy waters < 40F!

Mammoth Winter Fairy Shrimp (Branchinecta _)

Lifespan: 12 weeks
Full Size: up to 1.2"
Temperature: 40F - 72F (optimal 60-68); can even hatch in icy waters < 40F!

Beavertail Fairy Shrimp

Lifespan: 14 weeks average
Full Size: up to 2"
Temperature:

Giant Fairy Shrimp (Branchinecta gigas):

Lifespan:
Full Size: up to 3.4"
Temperature: 45-60F optimal to hatch


Videos:

2-3" red and green found in a well: http://www.youtube.com/watch?v=ftBNnrteoP8
2" beavertails captured from a puddle: http://www.youtube.com/watch?v=xunAaPDOtNs

I think they make an unique addition to an aquarium despite their 3-4 months lifespan. The red/green ones, and the red-tail makes them pretty prominent and easy to spot.

Articles:

Instructions on raising fairy shrimp.
Journal article on using fairy shrimp as live feed to improve growth in prawns.

Personal Experience:

Thai: low hatch rate, longest life span was 3 1/2 weeks.

Trying some Redtails now.
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Complete Fairy Shrimp Guide 5 years 4 months ago #23

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Pics coming... I just finally got my 5,000 Thai Fairy Shrimp eggs from Thailand, apparently they all fit into this:





I don't have any food ready, can't seem to locate any yeast, or a spare glass container.
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Complete Fairy Shrimp Guide 5 years 4 months ago #24

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Okay, finally started my Fairy Shrimp Jar!

The Eggs:


Supposedly 5k Thai Fairy eggs in the container; I used 1/3 in my jar; I dumped another little bit in my 20g just to see what happens (panda platies ate some)

The Container:


Dumped them in this ~1/2-3/4 gal Walmart vase, water was just tap treated with some Prime


All floating


I swirled it around a bit with my planting tongs and covered with saran wrap (so my cat won't drink the eggs)

Food Prep:


Added some yeast, pinch of sugar, pinch of flakes, bits of veggie sticks (don't know what I'm doing)


Added water, microwaved 20 secs do not microwave!


Stirred, covered don't cover too tightly or it will blow up!, and put in fridge


We'll see if any hatch tomorrow, and if my food poisons them all ;)
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Complete Fairy Shrimp Guide 5 years 4 months ago #25

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Just took some macro shots with my cheap $10 extender.


i don't know what the worm-things are but they move


big eyes


that water is nasty


a greenish one near the plants


what the hell is this? looks like an alien spacecraft
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Complete Fairy Shrimp Guide 5 years 4 months ago #26

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I moved the jar outside, and the last 3 adult fairy shrimp finally died. The longest lived were about 3 1/2 weeks. The gunk on the bottom and stuck to the roots of the floaters probably hold thousands of eggs:



I don't feel like vacuuming it out yet since there's a growing population of daphnia, flea shrimp, and cyclops. Going to culture them some more and introduce them to my tanks with fish. I did not feed at all for the last 2 weeks, everything's living off the decomposing ketapang leaf + whatever else is in there.

In the mean while started 4 more jars (pickle, salsa, peppers):



2 jars of Thai, 2 jars of Redtail.
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Complete Fairy Shrimp Guide 5 years 4 months ago #27

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Conclusion? Lots of hassle given their short 3-week life span. It's much easier to keep a copepod or daphnia culture to feed fish or serve the filter-feeding function in a natural tank.

Some culture pics here: plantedspace.com/forum/6-aquariums-and-p...r-24g-mud-bucket#115
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