I have a 40 gallon with a 250MH over it on the second floor of my house. This summer I was going from 78 to 86 or more almost every day. Bought one of those cheapy clip on fans and put it on the same timer as the MH. Tank DOES NOT move from 78 all day now. Cheapest chiller I have EVER seen.
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38 Gallon Custom Starphire, Remora Pro, 2 Seio 820's, 24" Giesemann Infiniti 1x250W MH + 4x24W T5, 60lbs Live Rock.
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