I have a 48" one bulb fixture for my 55 gal fowlr tank that I am getting ready to setup. I don't want to spend money to buy a new fixture unless absolutely needed. However my question is what brand / kelvin bulb would you recommend buying to obtain the Most realistic natural white light kind of feel? ( as I really can't stand lights with a yellowish tint). From my online research the zoo Med brand such as the "reef sun" for example sounds great as its description is natural sunlight at 10,000K. Anyone have this brand they can write a review for me or recommend another brand. What range of K should I be purchasing to have that natural white sunlight feel ? 6,500K or 10,000 K. What should I use for a blueish color for night time affect? Any description of he different ranges of bulbs for a novice to understand would be greatly appreciated. I can't wait to start! Just want to make sure I cover my basis before diving into this beautiful hobby