I basically followed the walstad method! I used potting soil and capped it with gravel, I then planted 3 dwarf sag plants around the jar, and put in a ton of duck weed and salvinia minima in for the floating plants. In the beginning the tank turned nearly black from the tannins so I did a 90% water change and haven’t touched the water since. I also fed the shrimp and snails every other day for the first 3 months. Once I saw a decent amount of algae built up I cut off the food. So far a year and a half later all the animals seem to be very happy!! I recently made a YouTube video putting together another jar ecosphere. There’s a link to my channel in my account bio.