I grabbed the CFL's I had on hand, and the daylight 18w I have say that there output is around 6500K and says that they tend toward the cool or blue look, but don't specify their color output in a graph so I don't know how good they'd be.
Again, is your Flourish the Comprehensive or the Excel?
Also, it will take a little while for the plants to turn around, they will grow new leaves and greenery not repair the existing damaged foliage.