LED lighting requirement for SPS

[sphelps]

Well first of all, white LEDs are full spectrum. The advantage of what is referred to as "Full Spectrum" LED fixtures is the additional color control, just like a running a bunch of T5 bulbs you can tune color quite effectively with different bulb combos or you just run blue and white bulbs. Blue and white LED fixtures are more limited and I personally find running cool white LEDs in particular wash out some colors while fixtures with neutral white LED and/or red and green leds allow for cutting back on the cool white output enhancing certain colors. Debatable topic as it is, "full spectrum" does seem to be the popular trend for new fixtures and what most hobbyists prefer.

Second that fixture is junk, anything with a 48 white to 16 blue ratio is going to look terrible on an SPS tank. You'll spend more in the long run using fixtures like this.