I just ordered a 48" blue reefbrite xho for my 90gal. I'm currently running 2x250w 15k XM double ended bulbs, and it was recommended to me that I switch to 20K bulbs. My questions are:
Is there that much of a difference between the XM 15k I'm currently running and a potential bump to a 20k bulb?
What are the best 20k double ended mh bulbs available?
What would be the best process for adding the reefbrite and the new MH bulbs so I don't shock the crap out of my corals?
Thanks in advance for your time and input!
Is there that much of a difference between the XM 15k I'm currently running and a potential bump to a 20k bulb?
What are the best 20k double ended mh bulbs available?
What would be the best process for adding the reefbrite and the new MH bulbs so I don't shock the crap out of my corals?
Thanks in advance for your time and input!

