stock limit?

[gregzz4]

I have to agree with the guys above and I'll add that a lot of the lower end skimmers are over-rated.
You would definately do better with a higher-end skimmer rated above your tank size. You don't have to spend thousands.
A good skimmer new for you would be $350-450 for say a Vertex or a Skimz. Even an SWC.
Just buy bigger than rated for most and you will be fine.
And stay away from the Coralife stuff with a tank your size.