Here are some pictures of my 75 gallon tank using 3 different brands of 150 watt hqi bulbs. I am running a Coralife Aqualight Pro with the stock ballasts and reflectors with 65 watt actinic power compacts as supplements. All of these pictures are taken with the actinics on but the difference with them off or on is very minimal in my tank. I tried out several different bulbs and these are the 3 best I've used. I don't have a par meter or anything all I can do is jugde the growth on my sps. I have used the Radiums for the least amount of time but the growth seems to be better out of the Radiums than the other 2 although I had good growth under all 3.
Ushio 14k
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Phoenix 14k
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Radium 20k
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Maybe this will help someone decide on what brand of bulb to buy for their tank.
Ushio 14k
Phoenix 14k
Radium 20k
Maybe this will help someone decide on what brand of bulb to buy for their tank.