Not sure how you mean that... Are you saying run 2 for 6 hrs, then cut back to 1 for the next 2-3 hrs, or are you saying run 2 for 6 hrs and then ADD the additional bulb for a total of 3 running durring the last 2-3 hrs?
BTW, I'm home pretty much 24/7 and spend a lot of time around my tank and want to be able to see into it and enjoy it throughout the day and evening. If that means scrubbing algae now and then, so be it. I've had to take the anubias out once since restarting the tank here a few months ago and remove algae from the leaves, so if that's a standing issue with this plant then I may just remove it to a smaller tank which I can deal with not having lit up for viewing as much of the time I suppose. I intend to add some otos to help control it though.
BTW, I'm home pretty much 24/7 and spend a lot of time around my tank and want to be able to see into it and enjoy it throughout the day and evening. If that means scrubbing algae now and then, so be it. I've had to take the anubias out once since restarting the tank here a few months ago and remove algae from the leaves, so if that's a standing issue with this plant then I may just remove it to a smaller tank which I can deal with not having lit up for viewing as much of the time I suppose. I intend to add some otos to help control it though.