Question

jwagne267

Member
If I were to run 2 70 Watt HQI MH bulbs would I need 2 ballast or can I just buy one stronger ballast?
Also what would be the best bulbs to buy for it?
 

xdfireguy

Member
There are ballasts which are made for two bulbs, but for the most part it is a one-to-one ratio.
With regards to bulbs, it really depends what you are looking for. Are you looking for a white light, blue, deep blue? You would be looking for a 10k, 14k, or 20k bulb respectively. If you are supplimenting with actinics, I would stay away from the 20k bulbs.
Many bulbs reccomendations are based on personal preference and heresay. I have had both good and bad experiences from bulbs that cost $80 and ones that cost $10 from the 'bay. My only reccomendation is to do some research, if you want some real in depth analysis google Sanjay's Reef Lighting. Otherwise, look at other peoples tanks running the same lighting.
I have not met a single person who has kept the same bulb (make, model, color) without having changed something over the years ... or months even :)
 
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