OK, if you saw my other thread I was asking about lighting for my 54 gal corner tank. From the suggestions there I decided on 175 watt MH pendant.
So my questions are:
What is better 5500K or 6500K?
Is a Coralife bulb better than a no name (Coralife bulb upgrades are about $60) on most sites.
How close to the glass can the fixture be mounted?