Duckweed Scoop(Aquarium)

My small aquarium has some duckweed, in small quantities i think it's OK. But they were getting out of controll, and i got tired using a fork to get it out. So i designed this.
A net works, but in my case it's too big and also get smal fish/fry.

I made it in 2 parts so smaller printers can print this too, snaps into place.

EDIT: 20.03.2020 I added a reinforced scoop head, it has a brace in the middle, not sure if needed.