Until your nitrites start getting down near 0 I'd stick with the every other day light feeding. I don't have a protein skimmer on my 14 or 29 gallon. Wish I did though. I do have one on my 40 breeder and love it...so do the corals. I once had a good one on my 29 gallon and the corals were so much happier than they are now without one (but the 40 breeder is using it now). lol I know you'll see mixed reviews whether to have a skimmer or not. I've seen gorgeous tanks that didn't have one. But I personally have tried both in the 29 gallon Biocube and definitely prefer having one...and I do religious 15%-20% water changes weekly in every tank. I still prefer having a skimmer along with the weekly water changes. I just don't like the cheap protein skimmer at all that comes with the Biocube...unless they are different than they were 4 years ago. I tried using it and the wooden air stone got gross after like 2 months and I felt that skimmer was doing more harm than good in the tank.