Does anybody here have experience in running a reef tank without a protein skimmer? Currently running just a HOB filter on my 30 gal.
Yup. I did it for years.Not personally, but I'd say it's at least a little common. I'd have a larger that normal coral population and smaller than normal fish population if I was going to try it. 24/7 aeration will be your #1 concern without a skimmer running....the larger the bio-load the bigger this issue will be.
I bet someone on #reefsquad is doing it.