You might take this a different direction.
Use a nice display tank and use the glass to emulate all the elements of a planted aquarium.
This would free you from aquarium constraints.
You can then use the brown wood like pieces, then the plants themselves can be formed and sold.
Glass grit like gravel.
Glass in/out filters etc and then but of course.......Glass fish(real live ones).
Or just a scene(empty tank, more a display case).
There might be a market for glass art based on aquatic plants.