Can you tell me what ultra fine ceramic stones you use? Im looking for good ceramicSee if this helps
6 Foot Tall DIY Protein Skimmer | BeanAnimal's Reef
DIY 6 foot tall (7 with collection cup) protein skimmer for a reef aquarium. Constructed with acrylic and clear PVC. Full construction details and image gallery.beananimal.com
From what you describe, you have a lot of variables to work with. It will skim, but will not be super efficient and not be easy to keep dialed in.
I removed the recirc needlewheel from the 6' skimmer and went with ultra fine ceramics. More reliable than limewood.
Feeding directly from the surface skimmer/overflow is in theory the best, but will make things hard to keep dialed in, unless you convert this to a recirculating design which may not be worth the effort.
The skimmer worked extremely well - but it took a year or two of trial and error. It ran for 5+ years maybe more until I took it offline to dabble with turf scrubber only export.
I would NEVER DIY another skimmer. I just ordered a Reef Octopus to save myself the hassle.
Are you hellbent on a DIY, constrained by budget, etc?
Why it takes so long to adjust it? Ime most problems come from neck sizing
And why not air injector on output tube (like lifereef, etc),? that works best with back pressure of tall skimmers. Need too much eletricity or you find some other disadvantage?