Hi, it's been a year since I got my Metal Halide fixture, so I've decided to change the bulb soon, but I've heard many different opinions about the spectrum. Which spectrum should I buy (10000k 14000k or 20000k)?
I have another question, does anyone know the difference between 150HQI and 250HQI, I have a fixture that can hold 250HQI bulbs, can I put a 150 HQI bulb in? Thanks
38 gallon of freshwater, 48 gallon of saltwater, 6 gallon of turtle water.
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