A practical and minimalist plant holder designed to let you grow up to three plants directly at the surface of your aquarium. Perfect for pothos, philodendron, lucky bamboo, and other semi-aquatic species. The holder have 2 suctions cup emplacement and provides stable slots to keep each plant in place, promoting natural filtration and healthy growth.

Link to suction cup : https://www.aliexpress.com/item/1005008465596734.html

You have to use the same one were you can take out the pin.