I started this type of setup last week with a small, clear plastic container with a lid. I made a small hole on the lid for gas exchange. I filled the container with Aqua Soil of 2cm depth. I planted HC and hairgrass. After one week, I notice that the HC did grow a bit, some hairgrass leaves are dead, while some of them are having new leaves. I mist the plants twice everyday. Right now, I notice that some of the older HC leaves are yellowing, maybe not enough potassium? I think I need to start dosing fertilizers.
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