Lighting

Ok, I have two PC's lights but they are not the 50/50's, two whites on one and two blues on the other. My question is: Would you put the blues in front of the tank or the whites?

Now protein skimmer question: are you suppose to have any bubbles coming out of the return at all? Also, I still don't have much foam in the cup so I turned it up a little last night, thus creating some bubbles out of the return.

Thanks for ya help in advance!

I want to hook up timers to my lighting system. Each light, fans, and moonlight has a seperate wire. I went to Lowes the other day and seen what they have to offer. Is this where y'all get ya timers from or do they have some other place with timers with a little more control? I noticed they had timers with 1,2, and 3 plugs on them but they could not be seperately controlled. Do they make timers that can have multiple plugs with seperate controls?

Thanks for the help,
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Ok, since no question is stupid..heres one... what light is this..I have no name on the lighting itself...the light bulbs have nothing written of importance also that would tell me. The fixture has two off these...blues and whites. Well, that one is a blue and only one of the bulbs went out which means I have to buy a complete set due that they are all-in-one. Please let me know and also let me know if this is a ok setup and if they have retro-fits for it or what. Also, if y'all buy from a online ...