Please help me select bulbs!

[jayking232003]

I got a 48" PC coralife fixture with four 65w coralife 50/50 bulbs. Two are out.
Which bulbs do you suggest I replace them with? According to my research, there is alot of compatible bulbs. I was thinking since two of the four 50/50 bulbs are still working.... Should I get 10000°K/Actinic 460nm for the other two. Or keep them all 50/50. Or something else?
I guess I should ask,, whats a good combo.
Also, Which brand of bulb should I replace them with? Current, Coralife, or something else?

 

[chilwil84]

2 50/50 and 2 10 or 12K make a nice combo the 12k will make it lean blue and the 10K keep it more of a crisp white. i have never used uvl pc bulbs but there t5s are great u might want to check them out. uvl makes a line of pc bulbs with built in reflectors that should give them a little better output than other pc bulbs