Metal Halides for a 75 Gallon Tank??

dedecv3

Member
Looking to add a MH light fixture to my 75 gallon. I currently have a T5 set up: AquaticLife Dual Lamp T5 HO Freshwater Light Fixture - 48 in with one 6000K and one 650nm Roseate T5 HO bulb.
I would like to be able to keep any corals and want the most economical set up. How many & what size bulbs would be good for my tanks??
 
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