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Originally Posted by aussiefishy
i am thinking of using HQI pendants, can anyone give me any opinions on the heat issue and livestock suitability if i choose 1 20000k HQI as light? or any alternative? if HQI is ok, do i have to add antinics?
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Heat i don't think will be too bad, I ran a 175watt over my old 20g i had it mounted about 8 inches over the water. My temps never went over 81F in the summer. a 150 watt HQI will be awesome they generate more light that 250watt SE bulbs. You could keep pretty much any coral or clam or whatever else you want. As for actinic lighting you don't have too, I've been run actinic less on my 75g since october. It just really depends on what DE bulb you buy if you don't like the color you can always add actinic. Actinic is really just for color