Film on water surface? Are these worth it or worthless?

[@arinamoon9844]

It is such a huge tank.

[@-AndrewR]

👍🏻👍🏻 I have one I rotate between my tanks to help catch small pieces of duckweed I miss

[@JKFishKeeping]

Nice! Super clutch

[@karnage3809]

I recently just got a 50 lowboy and idk if it’s a good idea to stock it with a betta. Purely because it’s so hard to put a lid on it. Maybe I have to scape it in a way that non of the hard scape will pop up and lover the water by an inch maybe

[@JKFishKeeping]

You can try making your own lid with polycarbonate but I’m wondering about filtration for such a large footprint. Might be too much flow for a betta or not enough filtration for the tank size.