I wanted to create a planter of sorts for my aquarium. Some people convert their HOB (Hang on Back) filters to hold plants, but I don't have any HOB filters though I still wanted to benefit from the water filtering plants can do within an aquarium and created this box which is meant to be hung inside and protect the roots and stems from being eaten. Can probably use some bio media on the bottom as well.
It may be a bit too big and took a long time to print so it could probably use some refining but this was my first attempt at modeling anything and it works for me.
With the size of this it could also feasibly be used as a time out/resting/hospital cage for any fish that might need it.