Well, it isn't a yo-yo. I didn't even think about it beyond it being the perfect size for what I needed.
Do you have any pictures of this technique? I really only plan on having the betta and a snail in there. Maybe some shrimp once it's established. But I'm going to try and have my filter down a little so it will have a lower flow in the tank.
Do you think that will help, or is my theory bunk?
I'll see what I can get, but for now, most of the tips in the picture are touching the ground to prevent dead spots.
As much "off" the ground is the key for me.