Bubble King or Reef Octopus, sizing ... ???

[smokinreefer]

Fwiw,

I've done some recent research on BBK, the supermarin 200 would be perfect for your system. It would be my choice.

Having said that I have not researched the octopus skimmers.

Just to put some relevance to my opinion, I was researching skimmers for my next system, slightly larger than yours. And I plan on having lots of fish.
If you find a supermarin 200, you won't be disappointed.