Small Contained Ecosystem?

Spollack

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I just took a new job and they don't allow open aquariums on desks, so my plan is to get a bottle/jar I can cork and put a Marimo algae and a couple shrimp in there. Is there any flaw in this plan? Any help would be awesome! Thanks.

Something like this :

but with a couple cherry or glass shrimp?
 

BDpups

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It's worth a try. But with no water movement, I'm not sure how long term shrimp would last. You would have to change the water daily.


 

Dom90

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I noticed you said you would put a cork so the shrimp won't escape. But the problem with that is, the oxygen inside the bottle/jar will run out eventually, thus suffocating the specimens.
 
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Spollack

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I could uncork and recork it (to allow fresh oxygen), but do the shrimp really need moving water? How do the ecoshpheres support shrimp then?



thanks
 

BDpups

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Those are cool. I'm not sure how they work. But I know shrimp can be sensitive to ammonia and such. I guess water movement may not be necessary, but stagnant water is not something I would think dwarf shrimp would do very well in. Just my opinion.

I'm going to keep an eye on this and see how it works out.


 
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Spollack

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Does anyone else have any insight on this matter?
 

stargazerwolf

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They might survive for a bit, survive, not thrive. Those completely closed "ecosystems" might last awhile but I can't imagine that the shrimp are happy. There is no way for there to be a complete ecosystem in an enclosed environment like that. It's just water, a plant and shrimp, oxygen would eventually run out but I assume they last for a bit because the shrimp and plants give each other what they need to a point. Also part of those enclosed ones is you have to put them in the window for sun some of the time to grow algae for the shrimp or they will run out of food. Even still that give no variety in their diet. If you put them in a jar I'd change out water daily, give them just a bit of food and they could be ok...however, I'd never do that to a living thing. Shrimp do like to swim. I see them swim across the whole front of my 10 gallon. In there, they could barely swim at all. Its kind of like when people have a bird in a cage and never let them out, they will live, but can't say they'd be happy.

So while it is possible, I don't suggest keeping them in something so small. I personally wouldn't do anything smaller than a gallon, but even that is pushing it. I had some shrimp in a 2.5 gallon and they didn't do well even with a heater and filter.
 

Gena

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You could do it with a marimo moss ball. And put some stained glass fish the have little glass balloons that make them float. I love those floaty things. =p



Also, there are some really cool fake aquariums that would look nice on your desk.
 

EricV

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Spollack said:
I could uncork and recork it (to allow fresh oxygen), but do the shrimp really need moving water? How do the ecoshpheres support shrimp then?



thanks
They short answer is that they don't over the long term. The issue isn't so much the food an oxygen but rather the lack of mineral replacement. Both plants and shrimp use minerals from the water which will eventually be used up thus killing them. It's the same reason why you can't keep plants and shrimp in pure distilled or ro water over the long haul.
 

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