Quote:
....Later on, I experimented a lot to avoid unsustainable use of peat.......
......If you're a bit hesitant, just make an almost fluid leaf-mold slurry and fill the tank 0.5-1 inch (you can use more but it's usually wiser to start with a little and add more later on)..........
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Kai,
Why is the use of peat unsustainable? Does the peat decay and disappear?
Why is it wiser to start with a little leaf mould and add more later? Do you have too much decay if you add it all at once? Do the plants do bettter if you add it in stages?