diy lighting "what bulb"

gguertin

New member
I have a 75 gallon tank and I want to use 2 bulbs I was thinking the 20,000k would work so I wouldnt need 4 smaller bulbs. Any recomendations this is all I have found.
plusrite metal halide lampplusrite metal halide lamp
 
would it be better to use a 10,000k bulb and an actinic? What is the best setup for a 75 gallon tank using metal halide lighting? right now it is primarily soft corals but I do not want to be limited by my lighting.
 
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