I'm wondering if I could get some assistance from the community of people utilizing a Regal 200EXT 8" Recirculating Protein Skimmer. Specifically those choosing to run the protein skimmer internally within the sump. The documentation that I have been able to locate online have been a bit scarce. What height are you running the surrounding water level at? What GPH are you feeding the protein skimmer with. What GPH are you running the re-circulation pump at? What is your system water volume? I'm having difficulty maintaining a consistent foam head running on my 180 gallon system with approximately 25+ fish.