LED actinics or whites?


New member
Hi all.
My first post please be nice.
I was hoping someone could help me decide whether to get a new marine blue (aquaray 600 ultima) or another marine white (aquaray 600).
The tank is a aqua one 620t and I have a aquaray 600 reef white and a aquaray 600 marine white, I only have softies but may like to get some harder corals later on. I surpose my question is "will the blue LEDs ade coral growth"?
Thanks all