Skimmers are more for SPS corals and large bio-loads (fish)
What are your lighting specs? Do you have any other powerheads beside the filter? What are you running in the filter, and how often do you change it?
With this info I or 'us' can help you
Okayy...edit - I was unable to find any info on the 150...do you remeber how many GPH it pushes?
I'd say you'll probably be fine with this filter, but you may want to look into the Hydor Korlia #1 or #2 to supplement the flow.
If you put your hand in the middle of the tank, can you feel the current in it?