One inch per five gallons? Who the hell came up with that?
Honestly, it's not that you will have too many fish - it's that you may have picked the wrong kind of fish. Anthias: fast and should be in schools; Scooter Blenny: obligate microfauna eater. Those two right there will spell trouble for a 30 gallon tank.
Remove those two, and you will doubtedly have any problems.
I have an old book at my house that recommends over ten fish - some are medium-sized - for a 30 gallon tank. If anything, with our powerful, modern protein skimmers, deep sand beds, refugiums, phosphate removers, et cetera, our ability to put fish in a tank should have increased, not decreased.
-Lynden
Couldnt agree more Lynden. That anthias has to go

Edit: It's ok to sound like a n00b, even I was one once. Also try to bear with those of us with experience here as we've seen (and sometimes personally experienced) the failures n00bs make on a regular basis. Sometimes reading the same posts over and over again can lead people to be short with n00bs regardless of how much they may want to help.