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Small (~2m²) pond for wildlife

Posts: 23
Location: Curitiba, Brazil
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I'm planning on implementing a small pond to attract insect-eating wildlife (especially frogs and geckos) to my garden to reduce the population of mosquitoes and gnats. After planting my food forest I don't have too much space left, I'd dedicate at most 2m² for it.

My main questions are: is it even feasible to have such a small functional pond? How can I passively aerate the water (are there underwater plants that excel at it)? Also, I live in an area with incidence of dengue, so it's important to have some fish that eats the mosquito larvae. Which fish would live well in such a small environment, eat the larvae, but also eventually some plant matter (so I don't have to buy fodder in the winter)?

I'm sure I'll have more questions afterwards, but so far those are the most important. Thanks.
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Location: Salt Lake Valley, Utah, hardiness zone 6b/7a
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Do you have access to mosquito fish (Gambusia affinis) in Brasil? If not, perhaps tetras would work.

There is an informative webpage on mosquito fish here:

It also has some good general information about ponds in it as well.

There is a youtube video, referenced in the Mosquito Control discussion last month, explaining the use of mosquito eating fish here:

I had a Brazilian friend who told me that Curitiba was the best city in Brasil. That was over 30 years ago, is it still the best?
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