A few years ago, a young person in Argentina (not Brazil, my mistake), built a pond and engaged in discussions here about it. She set up a project for it as well:
https://www.inaturalist.org/projects/proyecto-de-conservacion-estanque-marianela
“Project made to compile observations recorded in or around the area of the wildlife pond “Estanque Marianela”, as well as further development of the area. The pond was created with the goal to protect, support and expand the local native biodiversity.
For information on how it all began you can check the following links:
https://forum.inaturalist.org/t/building-a-pond-for-wildlife-observation-tips-and-ideas/16067
https://forum.inaturalist.org/t/invasive-species-appearing-out-of-nowhere-what-should-i-do/19318/38
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