I just picked up a biocube 8 and would like to change out the bulbs. I think current makes the best pc bulbs in 18 watts i was kicking around 2 10k/460 with the bulbs configured 10k/460 10k/460 or a dual daylight 10k/6700k and a 420/460 any opinions? I 'm only going to keep some zoas maybe a few acans and poss a piece of poci from my main tank