10,000K is nice light, but adding the second strip that's all-blue will really bring out florescent colors more.
BTW, adding two all-blue strips wouldn't be too many. Some folks like a little blue and some like a lot. They also make 50/50 blue/white strips if you're somewhere in the middle of the blue spectrum.
Also, third and even fourth strips (however many will fit over the tank, really) are also perfectly legitimate options if you'd want a brighter tank for some reason down the road. Clams are one of the main reasons you'd want to consider more light, but not the only reason – I'd probably want at least three or four strips total for clams.

Most corals should be happy with just two or three strips though.
Some measurements with an inexpensive lux meter ($10-$20) along the way will make
guessing about these things
obsolete.