i need to get some new fluorescent bulbs for my reef. hellolights.com has the bulbs i want by coralife for $20 and drsfostersmith.com has the same color temp bulbs by zoomed for $13. if i went with the zoomed bulbs i would save like $50 or so. are the coralife bulbs really worth extra money or should i save a few bucks and go with the zoomed bulbs?