I am running about 40mg on 250G of water and it does the trick just fine. A little ozone goes a long way. I like the Red-Sea units as they are adjustable.
Mike
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Tank Specifications
180 Gallon Custom Starfire Tank
30G Frag Tank plumbed into main system
40 Gallon Sump (Custom Built)
3 x 400W 20K XMs on M59 Ballasts
2 x URI Super Actinics
1/4 HP Pacific Coast Chiller
Custom EuroReef RC-250 Recirculating Skimmer
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