I'm considering a nano tank to "aquascape" and maybe eventually introduce little shrimp and snails into, and now I'm swimming in relevant YouTube content --
But, what nice content! A lot of it is calming and lovely to watch. Could definitely be worse!
Looking at a 20 litre cube, at the moment. Hm hmmm.
I'm thinking I want to follow the Walstad method - which seems to be essentially plant heavily and let those plants do the filtering for you.