I'm playing around to see what happens. I live in tropical Rio de Janeiro. Years ago I tried setting up succulent plants in glass bottles with soil and river gravel. They died. It rained. Algae and slime grew. I poured out the water. It rained some more. I have no clue what all is in there now. So now that I discovered Reddit, I'm intent on sharing more biology adventures. I let tap water sit out several days to offgas chlorine. Filled the jars. Took clippings of Egeria densa and stuck them down in the substrate. Transferred a few pond snails from my 1-gallon glass globe aquarium to some of these bottles. They are in the shade, yet receive a pretty good amount of natural light. I added lids with holes to allow fresh air but hopefully prevent snail escapes.
What will become of them? Is this inhumane to the pond snails? (If so, I can replace them in the aquarium. So far, they are chowing down.)
by gringacarioca