
Should I close it now ?
Do I need to close this jar to create an enclosed jarrium?
For now it remains open. I'had adding bubbles to it with a tiny pump, which has actually saved my right jar.
Left jar (2 weeks old): Contains only river water with a single Java moss.
Right jar (2 months old): Contains Java moss and mangrove plants with river water.
Note : yes I have a lot tiny bestiary in it ! Both !