Yep, was due to not being to scale, but thanks for pointing that out
Am new to the hobby and that could have been a mistake I carried over by accident.
Thats a better diagram with more details.
1. overflow from tank
2. scimmer collection cup and cup drain line
3. main scimmer chamber
4. scimmer output
5. bubblemaker
6. bubble trap
7. baffles to slow water speed for refuge
8. refuge
With this better drawing, with more clear details, do you think this design would work with a gravity feed input?