Is Agitation of the water surface enough or do i still need bubbles?

[RLiu818]

I have a Marinland 550 PowerHead in my 10 gallon tank (currently being cycled).

It has the option of using that air tube or i can plug it up so that the powerhead just pushes water and no air.

I currently have the powerhead aimed upward so it agitates the water surface quite nicely. Right now it is plugged so it doesnt push any air bubbles out.

For a fish only tank, do i still need air bubbles or is this enough?

I plan on keeping 3 fish in there with about 10 lbs. of live rock.

[rlp]

No, you do not need the bubbles. I always plug up that airline thing too. The important thing is that the surface water is being agitated & circulated. Bubbles make of mess of salt creep on the top of the tank also.

[DgenR8]

RLP is right, you do not need the bubbles. Bubbles only break at the surface, and spray salt water when they do. That water drys up, and leaves the salt behind. This folks is one very productive route to go if you desire salt creep all around your tank.
I see that you're only keeping fish, they wouldn't be bothered by the bubbles, if you did add them, but corals would, they don't like little bubbles at all.
Keep your powerhead pointing up, and the venturi hole plugged.