So, it's time for new MH
bulbs. I'm switching from the Reeflux 12000K bulbs to the Iwasaki 15000k bulbs (both 175W).
I know how much more PAR the iwasakis are gonna put out (hence why I wanted to try them), so I know that I'm going to need to reacclimate the tank to the lighting.
Currently, I run my MHs 8 hours per day. How low should I drop that down when I install the new bulbs, and how quickly/slowly should I increase the duration afterwards?
I was thinking of dropping down to 5 hours initially, then increasing it by an hour per week. Is that toooooo slow/overkill?