welcome and cool looking tank! One note, most of the bowls have substrates such as potting soil for nutrients. It looks like you have gravel only then you may want to consider some nutrients in the water or root tabs.
the bowl is still up and running, though I did lose a few plants due to a lack of nutrients most likely. I have begun another tank- this one is a 7 gallon tank, with root tabs. I am dosing with excel once weekly.