My outdoor shrimp I had forgotten about - The Planted Tank Forum
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post #1 of 12 (permalink) Old 11-02-2019, 06:09 PM Thread Starter
snails are your friend
 
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My outdoor shrimp I had forgotten about

We've hit a cold snap and I'm just getting to removing my white clouds from the garden pond. I caught quite a few of the fish, all manner of insect larvae, tadpoles and such, but what shocked me somewhat was this:

At the bottom of the photo can be seen a big Neocaridina shrimp! I put a few from a cull tank outside after watching Rachael O'Leary's video and honestly had kind of forgotten I had. I've netted out four so far, but most of them are probably deep in the leaf litter. The pond water temperature was 41.0 this morning, I'm letting this 5 gallon bucket heat up slowly outside.


Acclimating them from 40 to 70 might be more of a swing than they can survive in a day but air temps are getting below freezing again tonight and I'm just going to catch what I can and try to slowly warm them up. Just thought folks might find this interesting. All four I have caught so far are much larger than they grow in my aquariums.
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post #2 of 12 (permalink) Old 11-02-2019, 06:47 PM
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That's awesome! Let's hope they live so you can compare them to some standard neos!
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post #3 of 12 (permalink) Old 11-02-2019, 07:09 PM
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I know someone locally to me.... she has 3 or 4 indoor aquariums and two outside "ponds" (aka half whiskey barrel style ponds). One she likes to keep shrimp and guppies in. She puts heaters in them during the winter and takes the heaters out during the warmer months. Last year, she took the heater out too early and we had a cold snap one night.... almost all the fish had died. Literally less than a handful left.... and the shrimp? Still shrimping around!
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post #4 of 12 (permalink) Old 11-02-2019, 07:40 PM Thread Starter
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That's awesome! Let's hope they live so you can compare them to some standard neos!
They're just plain ol' Neos that spent a few months outdoors. I think their size can be attributed to cool temps and tons of food. Trying to warm them up ever so slowly to acclimate them to indoor temps now.

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I know someone locally to me.... she has 3 or 4 indoor aquariums and two outside "ponds" (aka half whiskey barrel style ponds). One she likes to keep shrimp and guppies in. She puts heaters in them during the winter and takes the heaters out during the warmer months. Last year, she took the heater out too early and we had a cold snap one night.... almost all the fish had died. Literally less than a handful left.... and the shrimp? Still shrimping around!
Yeah, I've lost a lot of shrimp to warm water but never to cold. And I've let them get awfully cold.

Well, it was getting just below zero last night and I tried to get well into this pond and bring in anything I could save in the last hours of daylight. It's not looking promising, very few white cloud fry to be found. I really hope they are just laying low and dormant because the water surface shimmered with them a couple of weeks ago. I'll be gutted if they are all gone. But I've messed with white clouds for a while now, and if anything comes back in droves it's Tan's fish. But from just swinging a net around I got more full grown sized fish than fry. And only got 7 whole shrimp out of digging through pounds of leaf litter and sludge with my fingers. Small ones I just let go back in the pond rather than foul up the buckets getting them into the clean water.

Out of fear of them freezing I took a 300W aquarium heater out of storage and set it as low as it goes and dropped it in for the night. Outdoors on a pond probably pushing 1,000 gallons and that was at about 44 F in temperature at the time. But there was a warm (well, not freezing) area for them to congregate last night. I don't care if it kills my heater, I just don't want to do the wrong thing for the living fauna. This pond steamed lightly when I went out yesterday morning without a heater but the pond is deep enough (36") to get some ground warmth.

I found a few more shrimp today in the warm zone and they are whoppers. Makes me want to consider a much more leaf heavy approach and worry less about pristine water.
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Last edited by Darkblade48; 11-04-2019 at 09:56 AM. Reason: Please use the edit function for back to back posts to keep threads cleaner
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post #5 of 12 (permalink) Old 03-08-2020, 10:26 PM Thread Starter
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I went by the pond today and marveled at how the duckweed had overwintered. And then I saw something crawl along a rock.


It's been a mild winter, but we've had several nights in the teens. I definitely did not think any that I missed when I cleaned it out would have survived. Wow these things can take it cold!

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post #6 of 12 (permalink) Old 03-08-2020, 10:46 PM
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I went by the pond today and marveled at how the duckweed had overwintered. And then I saw something crawl along a rock.


It's been a mild winter, but we've had several nights in the teens. I definitely did not think any that I missed when I cleaned it out would have survived. Wow these things can take it cold!
Wow! Thats crazy!


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post #7 of 12 (permalink) Old 03-08-2020, 11:25 PM
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Nice! If you can get those guys up to a 16/20 count, I will help you find a factory to make them EZ Peel. Think of the riches we can make.
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post #8 of 12 (permalink) Old 03-08-2020, 11:33 PM Thread Starter
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I believe there's a festival in Japan where dwarf shrimp are fried and eaten. I don't even like to fool with shell on gulf shrimp though.

I guess these will breed again when it warms up. I need to configure some sort of trap. I think I got very lucky with the weather only being bitter cold for short stretches this winter.

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post #9 of 12 (permalink) Old 03-09-2020, 02:20 AM
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There is an artificial pond in some park in Hamburg, Germany that has a thriving population of hobbyist introduced Red Cherry Neos.


This is Northern Germany, and it's somewhat inland from the North Sea, so the winter times are pretty cold. They have near permanent ice on the pond for several week in Winter, yet these shrimp are thriving and living well in this pond.


Also a small cooling water outflow stream from a coal fired generation plant in Westphalia, Germany has a very large population of Neos living with Red Claw Shrimp in the same stream, and there's local biologists who suspect that they've already migrated to the Rhine.


There's a warm spring fed, little tributary to the Danube in East Austria, that also has a feral population of Neos. The lower reaches of the stream gets down to the lower 40's F, in Winter. And suspicions that the Danube may have these Neos soon.



They're incredibly tough little shrimp.
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post #10 of 12 (permalink) Old 04-21-2020, 10:00 PM Thread Starter
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Tried to clean leaves out today and it's going to be near impossible. There are shrimp everywhere. So I've gone to just reaching in and pulling them out a handful at a time.

This really makes me want a greenhouse to raise shrimp in year round. Weather was on my side this winter with only a couple of nights getting below 20 degrees.

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post #11 of 12 (permalink) Old 04-21-2020, 10:46 PM
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Tried to clean leaves out today and it's going to be near impossible. There are shrimp everywhere. So I've gone to just reaching in and pulling them out a handful at a time.

This really makes me want a greenhouse to raise shrimp in year round. Weather was on my side this winter with only a couple of nights getting below 20 degrees.
Wow! Look at that!--so cool
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post #12 of 12 (permalink) Old 04-21-2020, 10:58 PM
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I wish I had the room to set up a pond at my house! That is awesome!
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