Too much livestock?

[solidsnakejv]

90 gallon reef.

I finally made up my mind on my final livestock list, but is it too much.

1 Yellow tang
2 two ocerallis clowns
1 Luther's Watchman Goby (5")
1 Purple Firefish
1 Flame Angel
1 Blue Mandarin

Is that too much? Do i need another bottom creature besides the Watchman Goby.

I plan to add the Flame Angel a couple of months after i add corals, and the mandarin will be last once the tank is much more mature. I know the flame my give me a problem, but it's such a beautiful fish that i'm going to give it a shot. I guess i need a reason to stop liking him. lol.