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I have to try this with the kids. I wonder, if you aerated the water slightly and protected it a bit from things like heatwaves, would you see more life? Would
by steve_adams_86 7y ago
I have to try this with the kids. I wonder, if you aerated the water slightly and protected it a bit from things like heatwaves, would you see more life? Would the little crab have lived longer? Or would the higher life capacity due to increased oxygen also lead to more ammonia spikes that aeration alone wouldn't help the ecosystem process. I guess it's something to experiment with.
- Trav5 7y agoIt would be neat to aerate it without breaking the closed system. Maybe a magnetic connection through the glass. Motor on the outside and prop on the inside... Does add complexity though.
- avn2109 7y agoProbably almost every wet-bench lab has a magnetic stir bar, as in [0]. [0] https://www.youtube.com/watch?v=N3BoXEWCF2E https://www.youtube.com/watch?v=N3BoXEWCF2E
- Dylan16807 7y agoIf you're not changing the air, then it will already equalize very quickly without your help.
- fucking_tragedy 7y agoPutting a hole in the lid and covering it with micropore tape or polyfill would allow gas exchange without allowing microorganisms to escape or infect the jar.
- xattt 7y agoWould the gas exchange membrane also facilitate evaporation of the water?
- fucking_tragedy 7y agoIn my experience, no. If it does, it's negligible.
- george_ciobanu 7y agoDon't lock the kids in a jar! :D
- gumby 7y agoBut if not how are they going to learn?