This is a suspended planter box for an aquarium with internal dividers designed to hold different plants. Ours currently has a Pothos or two and Bamboo. I recommend some fish tank safe wire or similar to hold the bottom unless your plant has roots that can be held in the small holds.

Fits over standard glass ~6mm but is slightly oversized.

Recommendation: Print upside down on most printers to protect the clip and reduce supports.