I had no idea lights affected pH =O
Some clarification is needed. The lights do not directly affect the PH. Photosynthesis does affect PH through the use and depletion CO2. Excess C02 will lower your PH, as your photosynthetic animals use CO2 during photosynthesis the PH rises. When the lights are off and CO2 rises (either through respiration or absorption from the atmosphere), the Co2 will lower the PH of your tank.
I only mention this as important, as the original poster was waiting to put livestock in the tank until he had learned to manage his water parameters. If that is the goal, then you want to make the system as dynamic as possible.
There is an argument to be made for not running the lights during curing, but I believe that the benefits outweigh the negatives if it is done right, and if lighting the rock is practical. The argument against running lights is that there is allot of excess nutrients available during curing which could be used by undesirable algae. By providing the lights you will allow the undesirable algae to grow, causing it to get a foothold in your system and run rampant.
On the other hand, if you are doing the necessary things to export nutrients (usually lots of water changes) then this should be a minor problem. Furthermore, in most cases -especially brand new tanks- the tank is going to go through an algae cycle (di
atoms, green algae, cyano .. etc. etc.). Using the lights from the get go, will give you a jump start on this.
In terms of who to trust on these sites, it is very hard. You get a allot of different opinions on what you should do. Most, but not all LFS, are not good places to get info (there are some very, very good ones, butt his is rare) . Their priorities are different then ours, we are not here to make money off of you, they are.
My one fast rule, is don't listen to people who go around calling people noob. They are probably little better themselves. As Alexander Pope wrote:
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring;
For shallow draughts intoxicate the brain
And drinking largely sobers us again.