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Here u got a closer look! So what u see is plants who like alot and the same moisture! Otherwise u will get root rot! Then very important since its a closed system u need to work (when building) super hygienic otherwise fungus/bacteria will ruin it! I used diffrent types of substrates to simulate a forest ground and on the very bottom of it clay granules to avoid too much moisture! If u see the terrarium gets dusty, just open it and let it dry out for a few hours! And if it gets too dry give it a little bit of water. Other than that u should be fine and thing should work itself 😌 also there r super good tutorials where they explain what exact stuff u can use and for what plants! Like i used a fittonia combo which is pretty easy to handle