My 120g Mixed Marine Tank

[SeaSerpant]

Hey Whatcaneyedo,
I am planning to have the mh on the ends with the t5 strip down the middle. I plan to get a skimmer but that won't be until i have the tank set up/cycling.
I think that the small powerheads will create a different flow because the ocean isn't only a little bit of flow from here and there but all over. And i'd have a sump pump bumping the overall flow to over 2000 gph.
The fish situation is just a rough list so it's nothing definite. I will research into everything. And i think less than 10 fish would be kind of anti climatic for a big tank But i will also look into it!
I don't mean to disregard any advice! Sorry if it seems if i do.

For lighting i'm going to sell my halides and get the Sunlight tek light 8x54w. Will this be enough?

Thanks
SeaSerpant