I bought my NC28 HQI brand new and it was sold as a package with the chiller. I added a HOB skimmer and the chiller has to run throughout the night to cool off the heat added by the skimmer pump. With minimal equipment, LED lights, and a clip on fan blowing on the sump area, you might be able to keep the temps down. I would doubt you could do it with the HQI though without a chiller.
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72g bowfront, t5.
29g JBJ nano cube, ATI 26HD.
Livestock: clown fish, chromis, coral beauty.
Corals: Toadstool, maze brain, candy cane, mushrooms (purple & green hairy), button polyps, green zoas, GSP.
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